Arylpiperidinopropanol and arylpiperazinopropanol derivatives and pharmaceuticals containing the same

ABSTRACT

A compound having the formula (I) or its salt, hydrate, hydrate salt or solvate:                    
     wherein R 1  to R 4  independently represent H, halogen, OH, alkoxy, optionally substituted alkyl, aryl, or aralkyl group, R 5  represents H, optionally substituted alkyl, aryl, or aralkyl group, E 1  represents O, S, or —NR 6 , where R 6  represents H, an optionally substituted alkyl, aryl, or aralkyl group, E 2  represents O, S, or —NR 7 , where R 7  represents H, an optionally substituted alkyl, aryl, or aralkyl group, A represents CH, C(OH), or N, X represents H, halogen, alkoxy, or an optionally substituted alkyl group, and Q represents an optionally substituted phenyl group, phenoxy, phenylmethyl, or cycloalkyloxy group, where when E 1  represents O or S, E 2  does not represent O or S, which has an action of suppressing the cytotoxic Ca 2+  overload and lipid peroxidation and effective for pharmaceutical preparation for the alleviation and treatment of symptoms due to ischemic diseases, etc.

This application is a divisional of U.S. application Ser. No.09/331,712, filed on Jun. 25, 1999 now U.S. Pat. No. 6,407,099, whichwas a national stage filing under 35 U.S.C. §371 of InternationalApplication No. PCT/JP98/04943 filed on Oct. 30, 1998, whichInternational Application was not published by the International Bureauin English.

TECHNICAL FIELD

The present invention relates to novel arylpiperidinopropanol andarylpiperazinopropanol derivatives, their pharmaceutically acceptablesalts, hydrates, hydrate salts and solvates effective for thealleviation and treatment of symptoms due to ischemic diseases, forexample, cerebral infarction, cerebral edema, intracerebral hemorrhage,transient ischemic attack, subarachnoid hemorrhage, head trauma, aftereffects of brain surgery, after effects of cerebral arteriosclerosis,and other cerebrovascular disorders, or variant angina, unstable angina,myocardial infarction, cardiovascular system disorders accompanyingsurgery for revascularization by PTCA (percutaneous transluminalcoronary angioplasty)/PTCR (percutaneous transluminal coronaryrevascularization)/CABG (coronary artery bypass grafting) etc.,malignant arrhythmia and myocardial ischemia-reperfusion injury, andfurther disorders of transplanted organs at the time of organtransplants and temporary blockage of the blood flow in organs at thetime of surgery, symptoms due to neurodegenerative diseases, forexample, Alzheimer's, Parkinson's and Huntington's diseases, ALS(amyotrophic lateral sclerosis), and other neurodegenerative disordersor symptoms derived from seizures, epilepsy, migraine headaches,diabetes, arteriosclerosis, and inflammatory diseases. Further, thepresent invention also relates to the method of producing abovecompounds.

BACKGROUND ART

In cellular disorders caused by advanced ischemia, the depletion of ATP,the fall in the pH in the cells, and the destruction of the mechanismfor maintenance of the energy-dependent ion homeostasis inside andoutside the cell cause the accumulation of a large amount ofintracellular divalent Ca ions (Ca²⁺). It is believed that the Ca²⁺overload causes functional disorders in the mitochondria and randomlyactivates various enzyme reactions and invites further Ca²⁺ overload [F.B. Meyer: Brain Res. Rev., 14, 227 (1989); E. Boddeke et al.: TrendsPharmacol. Sci., 10, 397 (1989)]. On the other hand, while a smallamount of active oxygen and free radicals such as superoxide anionradical (O₂ ⁻.), hydrogen peoxide (H₂O₂), hydroxy radical (OH.) andperoxynitrite (ONOO⁻) produced along with the production of energy inthe body and the metabolic process are effectively scavenged by enzymessuch as SOD (superoxide dismutase) and catalase and natural antioxidantssuch as α-tocopherol ingested into the body, it is known that theexcessive production of active oxygen/free radicals in ischemicdiseases, neurodegenerative diseases, diabetes, arteriosclerosis,inflammatory diseases, or other diseases, imparts irreparable damage tothe cell membrane through extensive lipid peroxidation or variousradical reactions. Furthermore, arachidonic acid produced by thedecomposition of the phospholipids in the cell membrane at that time isconverted, through a peroxidation process (arachidonic acid cascade), tothromboxane A₂, which has a vascular constrictive and blood platletaggregating actions, resulting in a cause of formation of thrombus, andtherefore aggravates the cellular disorder. The two processes of theabove Ca²⁺ overload and excess production of active oxygen/freeradicals, in cellular disorders caused by ischemia, act as mutuallyaggravating factors and are repeated in a vicious cycle which finallyleads to cell death [J. M. McCall et al.: Ann. Rep. Med. Chem., 27, 31(1992); C.-M. Andersson et al.: Advances in Drug Research, 28, 65(1996)].

Therefore, pharmaceuticals which not only suppress cytotoxic Ca²⁺overload but also scavenge active oxygen/free radicals or suppress lipidperoxidation are considered to be those for the alleviation or treatmentof various ischemic diseases, for example, cerebral infarction, cerebraledema, intracerebral hemorrhage, transient ischemic attack, subarachnoidhemorrhage, head trauma, after effects of brain surgery, after effectsof cerebral arteriosclerosis, and other cerebrovascular disorders, orvariant angina, unstable angina, myocardial infarction, cardiovascularsystem disorders accompanying surgery for revascularization byPTCA/PTCR/CABG etc., malignant arrhythmia and myocardialischemia-reperfusion injury, and further disorders of transplantedorgans at the time of organ transplants and temporary blockage of theblood flow in organs at the time of surgery, various neurodegenerativediseases, for example, Alzheimer's, Parkinson's and Huntington'sdiseases and ALS, and seizures, epilepsy, migraine headaches, anddiabetes, arteriosclerosis, inflammatory diseases, etc.

As the arylpiperidine and arylpiperazine derivatives having an action ofsuppressing Ca²⁺ overload, for example, there is known the compounddescribed in International Patent Publication Nos. WO 96/22977 and WO96/26924. No compound, however, is mentioned which has an action ofsuppressing lipid peroxidation as well as Ca²⁺ overload.

DISCLOSURE OF INVENTION

Consequently, the objective of the present invention is to provide acompound having an action of suppressing cytotoxic Ca²⁺ overload andlipid peroxidation and effective for the alleviation and treatment ofsymptoms due to ischemic diseases, neurodegenerative diseases andsymptoms derived from seizures, epilepsy, migraine headaches, diabetes,arteriosclerosis, inflammatory diseases, and other diseases which ishigh in safety and suitable for use for preparations such as injections.

The present inventors synthesized and screened a series of compounds byevaluating the action of suppressing cytotoxic Ca²⁺ overload and lipidperoxidation considered to cause ischemic cellular disorders and, as aresult, found that arylpiperidinopropanol and arylpiperazinopropanolderivatives having the formula (I):

wherein R¹ to R² independently represent a hydrogen atom, a halogenatom, a hydroxy group, an alkoxy group, an optionally substituted alkylgroup, an optionally substituted aryl group, or an optionallysubstituted aralkyl group, R⁵ represents a hydrogen atom, an optionallysubstituted alkyl group, an optionally substituted aryl group, or anoptionally substituted aralkyl group, E¹ represents an oxygen atom, asulfur atom, or a group —NR⁶, where R⁶ represents a hydrogen atom, anoptionally substituted alkyl group, an optionally substituted arylgroup, or an optionally substituted aralkyl group, E² represents anoxygen atom, a sulfur atom, or a group —NR⁷, where R⁷ represents ahydrogen atom, an optionally substituted alkyl group, an optionallysubstituted aryl group, or an optionally substituted aralkyl group, Arepresents CH, C(OH), or a nitrogen atom, X represents a hydrogen atom,a halogen atom, an alkoxy group, or an optionally substituted alkylgroup, and Q represents an optionally substituted phenyl group, anoptionally substituted phenoxy group, an optionally substitutedphenylmethyl group, or an optionally substituted cycloalkyloxy group,where when E¹ represents an oxygen atom or a sulfur atom, E² does notrepresent an oxygen atom or a sulfur atom, have-not only an action inblocking non-L type Ca²⁺ channels and Na⁺ channels reported to beinvolved in the manifestation of Ca²⁺ overload [P. J. Pauwels et al.:Life Science, 48, 1881 (1991)], but also a powerful action insuppressing lipid peroxidation. Further, we confirmed that thesecompounds were effective in various pharmacological tests, with high insafety, and were suitable for pharmaceutical preparations and therebycompleted the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION

While the flunarizine being used as an agent for improvement of thebrain circulation [J. P. Pauwels et al.: Life Science, 48, 1881 (1991);G. E. Billman: Eur. J. Pharmacol., 212, 231 (1992)] has the major defectin use of the side effect of manifestation of symptoms of Parkinson'sdisease due to the dopamine D₂ receptors blocking action, the compoundhaving the general formula (I) of the present invention was found tohave an extremely low affinity with respect to the cause of the sideeffects-of flunarizine, the dopamine D₂ receptors.

In the present invention, as ischemic diseases, cerebral ischemicdiseases, for example, cerebral infarction, intracerebral hemorrhage,transient ischemic attack, subarachnoid hemorrhage, head trauma, aftereffects of brain surgery, after effects of cerebral arteriosclerosis,and other cerebrovascular disorders, ischemic cardiac diseases, forexample, variant angina, unstable angina, myocardial infarction,cardiovascular system disorders accompanying surgery forrevascularization by PTCA/PTCR/CABG etc., malignant arrhythmia and othermyocardial ischemia-reperfusion injury, and also disorders oftransplanted organs at the time of organ transplants, and temporaryblockage of the blood flow in organs at the time of surgery may bementioned, and as neurodegenerative diseases, for example, Alzheimer's,Parkinson's and Huntington's diseases, ALS may be mentioned.

The compounds having the formula (I) of the present invention includecompounds having-the formulas (Ia), (Ib), and (Ic):

In the formula (Ia)

wherein, R¹ to R⁵, E¹, E², X, and Q are the same as defined above, asthe halogen atom indicated by R¹ to R⁴ ₁, a fluorine atom, a chlorineatom, or a bromine atom may be mentioned, as the alkoxy group, a C₁ toC₅ linear or branched alkoxy group such as a methoxy group and an ethoxygroup, etc. may be mentioned, as the optionally substituted alkyl group,a C₁ to C₅ linear or branched alkyl group optionally substituted with ahalogen atom such as a methyl group, an ethyl group, a propyl group, ora trifluoromethyl group, etc. may be mentioned. As the aryl group of theoptionally substituted aryl group, indicated by R¹ to R⁴, a C₄ to C₁₄aryl group which may contain one or more hetero atoms such as a nitrogenatom or an oxygen atom may be mentioned, preferably a phenyl group, anaphthyl group, a pyridyl group, a quinolyl group, an isoquinolyl group,an indolyl group, etc. may be mentioned, and examples of the preferablesubstituent of the optionally substituted aryl group include a halogenatom such as a fluorine atom, a chlorine atom, or a bromine atom, ahydroxy group, a C₁ to C₅ linear or branched alkoxy group such as amethoxy group, or an ethoxy group, a C₁ to C₅ linear or branched alkylgroup optionally substituted with a halogen atom such as a methyl group,an ethyl group, or a trifluoromethyl group, etc.

As the aralkyl group of the optionally substituted aralkyl group,indicated by R¹ to R⁴, a C₅ to C₁₂ aralkyl group which may contain onits ring one or more hetero atoms such as a nitrogen atom or an oxygenatom may be mentioned, preferably a benzyl group, a phenylethyl group, apyridylmethyl group, a pyridylethyl group, etc. may be mentioned, asexamples of the preferable substituent of the optionally substitutedaralkyl group, a halogen atom such as a fluorine atom, a chlorine atom,or a bromine atom, a hydroxy group, a C₁ to C₅ linear or branched alkoxygroup such as a methoxy group, or an ethoxy group, and a C₁ to C₅ linearor branched alkyl group optionally substituted with a halogen atom suchas a methyl group, an ethyl group, or a trifluoromethyl group, etc. maybe mentioned.

As the optionally substituted alkyl group, indicated by R⁵, a C₁ to C₅linear or branched alkyl group optionally substituted with a halogenatom such as a methyl group, an ethyl group, a propyl group, or atrifluoromethyl group may be mentioned. As the aryl group of theoptionally substituted aryl group, indicated by R⁵, a C₄ to C₁₄ arylgroup which may contain one or more hetero atoms such as a nitrogen atomor an oxygen atom may be mentioned, preferably a phenyl group, anaphthyl group, a pyridyl group, a quinolyl group, an isoquinolyl group,an indolyl group, etc. may be mentioned, as preferable substituents ofthe optionally substituted aryl group, a halogen atom such as a fluorineatom, a chlorine atom, or a bromine atom, a hydroxy group, a C₁ to C₅linear or branched alkoxy group such as a methoxy group, or an ethoxygroup, and a C₁ to C₅ linear or branched alkyl group optionallysubstituted with a halogen atom such as a methyl group, an ethyl group,or a trifluoromethyl group may be mentioned. As the aralkyl group of theoptionally substituted aralkyl group, indicated by R⁵, a C₅ to C₁₂aralkyl group which may contain on its ring one or more hetero atomssuch as a nitrogen atom or an oxygen atom may be mentioned, preferably abenzyl group, a phenylethyl group, a pyridylmethyl group, a pyridylethylgroup, etc. may be mentioned, and as examples of the preferablesubstituent of the optionally substituted aralkyl group, a halogen atomsuch as a fluorine atom, a chlorine atom, or a bromine atom, a hydroxygroup, a C₁ to C₅ linear or branched alkoxy group such as a methoxygroup, or an ethoxy group, and a C₁ to C₅ linear or branched alkyl groupoptionally substituted with a halogen atom such as a methyl group, anethyl group, or a trifluoromethyl group may be mentioned.

In the group —NR⁶ of E¹ and the group —NR⁷ of E², as the optionallysubstituted alkyl group indicated by R⁶ or R⁷, a C₁ to C₅ linear orbranched alkyl group optionally substituted with a halogen atom such asa methyl group, an ethyl group, a propyl group, or a trifluoromethylgroup may be mentioned. As the aryl group of the optionally substitutedaryl group indicated by R⁶ or R⁷, a C₄ to C₁₄ aryl group which maycontain one or more hetero atoms such as a nitrogen atom or an oxygenatom may be mentioned, preferably a phenyl group, a naphthyl group, apyridyl group, a quinolyl group, an isoquinolyl group, an indolyl group,etc. may be mentioned, and as preferable substituents of the optionallysubstituted aryl group, a halogen atom such as a fluorine atom, achlorine atom, or a bromine atom, a hydroxy group, a C₁ to C₅ linear orbranched alkoxy group such as a methoxy group, or an ethoxy group, and aC₁ to C₅ linear or branched alkyl group optionally substituted with ahalogen atom such as a methyl group, an ethyl group, or atrifluoromethyl group may be mentioned. As the aralkyl group of theoptionally substituted aralkyl group indicated by R⁶ or R⁷, a C₅ to C₁₂aralkyl group which may contain on its ring one or more hetero atomssuch as a nitrogen atom or an oxygen atom may be mentioned, preferably abenzyl group, a phenylethyl group, a pyridylmethyl group, a pyridylethylgroup, etc. may be mentioned, and as examples of the preferablesubstituent of the optionally substituted aralkyl group, a halogen atomsuch as a fluorine atom, a chlorine atom, or a bromine atom, a hydroxygroup, a C₁ to C₅ linear or branched alkoxy group such as a methoxygroup, or an ethoxy group, and a C₁ to C₅ linear or branched alkyl groupoptionally substituted with a halogen atom such as a methyl group, anethyl group, or a trifluoromethyl group may be mentioned.

As the halogen atom indicated by X, a fluorine atom, a chlorine atom, ora bromine atom may be mentioned, as the alkoxy group, a C₁ to C₅ linearor branched alkoxy group such as a methoxy group or an ethoxy group maybe mentioned, and as the optionally substituted alkyl group, a C₁ to C₅linear or branched alkyl group optionally substituted with a halogenatom such as a methyl group, an ethyl group, a propyl group, or atrifluoromethyl group may be mentioned.

As the cycloalkyloxy group indicated by Q, a C₄ to C₈ cycloalkyloxygroup such as a cyclobutyloxy group, a cyclopentyloxy group, acyclohexyloxy group, or a cycloheptyloxy group.

As preferable substituents of the optionally substituted phenyl group,the optionally substituted phenoxy group, the optionally substitutedphenylmethyl group or the optionally substituted cycloalkyloxy groupindicated by Q, a halogen atom such as a fluorine atom, a chlorine atom,or a bromine atom, a hydroxy group, a C₁ to C₅ linear or branched alkoxygroup such as a methoxy group, or an ethoxy group, and a C₁ to C₅ linearor branched alkyl group optionally substituted with a halogen atom suchas a methyl group, an ethyl group, or a trifluoromethyl group may bementioned. As the halogen atom of the C₁ to C₅ linear or branched alkylgroup optionally substituted with a halogen atom, a fluorine atom, achlorine atom, or a bromine atom may be mentioned.

In the formula (Ib)

wherein, R¹ to R⁵, E¹, E², X, and Q are the same as defined above, asthe halogen atom indicated by R¹ to R⁴, a fluorine atom, a chlorineatom, or a bromine atom may be mentioned, as the alkoxy group, a C₁ toC₅ linear or branched alkoxy group such as a methoxy group or an ethoxygroup may be mentioned, and as the optionally substituted alkyl group, aC₁ to C₅ linear or branched alkyl group optionally substituted with ahalogen atom such as a methyl group, an ethyl group, a propyl group, ora trifluoromethyl group may be mentioned. As the aryl group of theoptionally substituted aryl group, indicated by R¹ to R⁴, a C₄ to C₁₄aryl group which may contain one or more hetero atoms such as a nitrogenatom or an oxygen atom may be mentioned, preferably a phenyl group, anaphthyl group, a pyridyl group, a quinolyl group, an isoquinolyl group,an indolyl group, etc. may be mentioned, as preferable substituents ofthe optionally substituted aryl group, a halogen atom such as a fluorineatom, a chlorine atom, or a bromine atom, a hydroxy group, a C₁ to C₅linear or branched alkoxy group such as a methoxy group, or an ethoxygroup, and a C₁ to C₅ linear or branched alkyl group optionallysubstituted with a halogen atom such as a methyl group, an ethyl group,or a trifluoromethyl group may be mentioned.

As the aralkyl group of the optionally substituted aralkyl group,indicated by R¹ to R⁴, a C₅ to C₁₂ aralkyl group which may contain onits ring one or more hetero atoms such as a nitrogen atom or an oxygenatom may be mentioned, preferably a benzyl group, a phenylethyl group, apyridylmethyl group, a pyridylethyl group, etc. may be mentioned, asexamples of the preferable substituent of the optionally substitutedaralkyl group, a halogen atom such as a fluorine atom, a chlorine atom,or a bromine atom, a hydroxy group, a C₁ to C₅ linear or branched alkoxygroup such as a methoxy group, or an ethoxy group, a C₁ to C₅ linear orbranched alkyl group optionally substituted with a halogen atom such asa methyl group, an ethyl group, or a trifluoromethyl group, etc. may bementioned.

As the optionally substituted alkyl group indicated by R⁵, a C₁ to C₅linear or branched alkyl group optionally substituted with a halogenatom such as a methyl group, an ethyl group, a propyl group, or atrifluoromethyl group may be mentioned. As the aryl group of theoptionally substituted aryl group indicated by R⁵, a C₄ to C₁₄ arylgroup which may contain one or more hetero atoms such as a nitrogen atomor an oxygen atom may be mentioned, preferably a phenyl group, anaphthyl group, a pyridyl group, a quinolyl group, an isoquinolyl group,an indolyl group, etc. may be mentioned, and as preferable substituentsof the optionally substituted aryl group, a halogen atom such as afluorine atom, a chlorine atom, or a bromine atom, a hydroxy group, a C₁to C₅ linear or branched alkoxy group such as a methoxy group, or anethoxy group, and a C₁ to C₅ linear or branched alkyl group optionallysubstituted with a halogen atom such as a methyl group, an ethyl group,or a trifluoromethyl group may be mentioned. As the aralkyl group of theoptionally substituted aralkyl group indicated by R⁵, a C₅ to C₁₂aralkyl group which may contain on its ring one or more hetero atomssuch as a nitrogen atom or an oxygen atom may be mentioned, preferably abenzyl group, a phenylethyl group, a pyridylmethyl group, a pyridylethylgroup, etc. may be mentioned, as examples of the preferable substituentof the optionally substituted aralkyl group, a halogen atom such as afluorine atom, a chlorine atom or a bromine atom, a hydroxy group, a C₁to C₅ linear or branched alkoxy group such as a methoxy group, or anethoxy group, and a C₁ to C₅ linear or branched alkyl group optionallysubstituted with a halogen atom such as a methyl group, an ethyl group,or a trifluoromethyl group may be mentioned.

In the group —NR⁶ of E¹ and the group —NR⁷ of E², as the optionallysubstituted alkyl group indicated by R⁶ or R⁷, a C₁ to C₅ linear orbranched alkyl group optionally substituted with a halogen atom such asa methyl group, an ethyl group, a propyl group, or a trifluoromethylgroup may be mentioned. As the aryl group of the optionally substitutedaryl group indicated by R⁶ or R⁷, a C₄ to C₁₄ aryl group which maycontain one or more hetero atoms such as a nitrogen atom or an oxygenatom may be mentioned, preferably a phenyl group, a naphthyl group, apyridyl group, a quinolyl group, an isoquinolyl group, an indolyl group,etc. may be mentioned, and as preferable substituents of the optionallysubstituted aryl group, a halogen atom such as a fluorine atom, achlorine atom, or a bromine atom, a hydroxy group, a C₁ to C₅ linear orbranched alkoxy group such as a methoxy group, or an ethoxy group, and aC₁ to C₅ linear or branched alkyl group optionally substituted with ahalogen atom such as a methyl group,. an ethyl group, or atrifluoromethyl group may be mentioned. As the aralkyl group of theoptionally substituted aralkyl group indicated by R⁶ or R⁷, a C₅ to C₁₂aralkyl group which may contain on its ring one or more hetero atomssuch as a nitrogen atom or an oxygen atom may be mentioned, preferably abenzyl group, a phenylethyl group, a pyridylmethyl group, a pyridylethylgroup, etc. may be mentioned, and as examples of the preferablesubstituent of the optionally substituted aralkyl group, a halogen atomsuch as a fluorine atom, a chlorine atom, or a bromine atom, a hydroxygroup, a C₁ to C₅ linear or branched alkoxy group such as a methoxygroup, or an ethoxy group, and a C₁ to C₅ linear or branched alkyl groupoptionally substituted with a halogen atom such as a methyl group, anethyl group, or a trifluoromethyl group may be mentioned.

As the halogen atom indicated by X, a fluorine atom, a chlorine atom, ora bromine atom may be mentioned, as the alkoxy group, a C₁ to C₅ linearor branched alkoxy group such as a methoxy group or an ethoxy group maybe mentioned, and as the optionally substituted alkyl group, a C₁ to C₅linear or branched alkyl group optionally substituted with a halogenatom such as a methyl group, an ethyl group, a propyl group, or atrifluoromethyl group may be mentioned.

As the cycloalkyloxy group indicated by Q, a C₄ to C₈ cycloalkyloxygroup such as a cyclobutyloxy group, a cyclopentyloxy group, acyclohexyloxy group, or a cycloheptyloxy group may be mentioned.

As preferable substituents of the optionally substituted phenyl group,the optionally substituted phenoxy group, the optionally substitutedphenylmethyl group or the optionally substituted cycloalkyloxy groupindicated by Q, a halogen atom such as a fluorine atom, a chlorine atom,or a bromine atom, a hydroxy group, a C₁ to C₅ linear or branched alkoxygroup such as a methoxy group, or an ethoxy group, and a C₁ to C₅ linearor branched alkyl group optionally substituted with a halogen atom suchas a methyl group, an ethyl group, or a trifluoromethyl group may bementioned. As the halogen atom of the C₁ to C₅ linear or branched alkylgroup optionally substituted with a halogen atom, a fluorine atom, achlorine atom, or a bromine atom may be mentioned.

In the formula (Ic)

wherein, R¹ to R⁵, E¹, E², X, and Q are the same as defined above, asthe halogen atom indicated by R¹ to R⁴, a fluorine atom, a chlorineatom, or a bromine atom may be mentioned, as the alkoxy group, a C₁ toC₅ linear or branched alkoxy group such as a methoxy group or an ethoxygroup may be mentioned, and as the optionally substituted alkyl group, aC₁ to C₅ linear or branched alkyl group optionally substituted with ahalogen atom such as a methyl group, an ethyl group, a propyl group, ora trifluoromethyl group may be mentioned. As the aryl group of theoptionally substituted aryl group indicated by R¹ to R⁴, a C₄ to C¹⁴aryl group which may contain one or more hetero atoms such as a nitrogenatom or an oxygen atom may be mentioned, preferably a phenyl group, anaphthyl group, a pyridyl group, a quinolyl group, an isoquinolyl group,an indolyl group, etc. may be mentioned, and as preferable substituentsof the optionally substituted aryl group, a halogen atom such as afluorine atom, a chlorine atom, or a bromine atom, a hydroxy group, a C₁to C₅ linear or branched alkoxy group such as a methoxy group, or anethoxy group, and a C₁ to C₅ linear or branched alkyl group optionallysubstituted with a halogen atom such as a methyl group, an ethyl group,or a trifluoromethyl group may be mentioned.

As the aralkyl group of the optionally substituted aralkyl groupindicated by R¹ to R⁴, a C₅ to C₁₂ aralkyl group which may contain onits ring one or more hetero atoms such as a nitrogen atom or an oxygenatom may be mentioned, preferably a benzyl group, a phenylethyl group, apyridylmethyl group, a pyridylethyl group, etc. may be mentioned, and asexamples of the preferable substituent of the optionally substitutedaralkyl group, a halogen atom such as a fluorine atom, a chlorine atom,or a bromine atom, a hydroxy group, a C₁ to C₅ linear or branched alkoxygroup such as a methoxy group, or an ethoxy group, a C₁ to C₅ linear orbranched alkyl group optionally substituted with a halogen atom such asa methyl group, an ethyl group, or a trifluoromethyl group, etc. may bementioned.

As the optionally substituted alkyl group indicated by R⁵, a C₁ to C₅linear or branched alkyl group optionally substituted with a halogenatom such as a methyl group, an ethyl group, a propyl group, or atrifluoromethyl group may be mentioned. As the aryl group of theoptionally substituted aryl group indicated by R⁵, a C₄ to C₁₄ arylgroup which may contain one or more hetero atoms such as a nitrogen atomor an oxygen atom may be mentioned, preferably a phenyl group, anaphthyl group, a pyridyl group, a quinolyl group, an isoquinolyl group,an indolyl group, etc. may be mentioned, and as preferable substituentsof the optionally substituted aryl group, a halogen atom such as afluorine atom, a chlorine atom, or a bromine atom, a hydroxy group, a C₁to C₅ linear or branched alkoxy group such as a methoxy group, or anethoxy group, and a C₁ to C₅ linear or branched alkyl group optionallysubstituted with a halogen atom such as a methyl group, an ethyl group,or a trifluoromethyl group may be mentioned. As the aralkyl group of theoptionally substituted aralkyl group indicated by R⁵, a C₅ to C₁₂aralkyl group which may contain on its ring one or more hetero atomssuch as a nitrogen atom or an oxygen atom may be mentioned, preferably abenzyl group, a phenylethyl group, a pyridylmethyl group, a pyridylethylgroup, etc. may be mentioned, and as examples of the preferablesubstituent of the optionally substituted aralkyl group, a halogen atomsuch as a fluorine atom, a chlorine atom, or a bromine atom, a hydroxygroup, a C₁ to C₅ linear or branched alkoxy group such as a methoxygroup, or an ethoxy group, and a C₁ to C₅ linear or branched alkyl groupoptionally substituted with a halogen atom such as a methyl group, anethyl group, or a trifluoromethyl group may be mentioned.

In the group —NR⁶ of E¹ and the group —NR⁷ of E², as the optionallysubstituted alkyl group indicated by R⁶ or R⁷, a C₁ to C₅ linear orbranched alkyl group optionally substituted with a halogen atom such asa methyl group, an ethyl group, a propyl group, or a trifluoromethylgroup may be mentioned. As the aryl group of the optionally substitutedaryl group indicated by R⁶ or R⁷, a C₄ to C₁₄ aryl group which maycontain one or more hetero atoms such as a nitrogen atom or an oxygenatom may be mentioned, preferably a phenyl group, a naphthyl group, apyridyl group, a quinolyl group, an isoquinolyl group, an indolyl group,etc. may be mentioned, and as preferable substituents of the optionallysubstituted aryl group, a halogen atom such as a fluorine atom, achlorine atom, or a bromine atom, a hydroxy group, a C₁ to C₅ linear orbranched alkoxy group such as a methoxy group, or an ethoxy group, and aC₁ to C₅ linear or branched alkyl group optionally substituted with ahalogen atom such as a methyl group, an ethyl group, or atrifluoromethyl group may be mentioned. As the aralkyl group of theoptionally substituted aralkyl group indicated by R⁵ or R⁷, a C₅ to C₁₂aralkyl group which may contain on its ring one or more hetero atomssuch as a nitrogen atom or an oxygen atom may be mentioned, preferably abenzyl group, a phenylethyl group, a pyridylmethyl group, a pyridylethylgroup, etc. may be mentioned, and as examples of the preferablesubstituent of the optionally substituted aralkyl group, a halogen atomsuch as a fluorine atom, a chlorine atom, or a bromine atom, a hydroxygroup, a C₁ to C₅ linear or branched alkoxy group such as a methoxygroup, an ethoxy group, a C₁ to C₅ linear or branched alkyl groupoptionally substituted with a halogen atom such as a methyl group, anethyl group, or a trifluoromethyl group may be mentioned.

As the halogen atom indicated by X, a fluorine atom, a chlorine atom,.ora bromine atom-may be mentioned, as the alkoxy group, a C₁ to C₅ linearor branched alkoxy group such as a methoxy group or an ethoxy group maybe mentioned, and as the optionally substituted alkyl group, a C₁ to C₅linear or branched alkyl group optionally substituted with a halogenatom such as a methyl group, an ethyl group, a propyl group, or atrifluoromethyl group may be mentioned.

As the cycloalkyloxy group indicated by Q, a C₄ to C₈ cycloalkyloxygroup such as a cyclobutyloxy group, a cyclopentyloxy group, acyclohexyloxy group, or a cycloheptyloxy group may be mentioned.

As preferable substituents of the optionally substituted phenyl group,the optionally substituted phenoxy group, the optionally substitutedphenylmethyl group or the optionally substituted cycloalkyloxy groupindicated by Q, a halogen atom such as a fluorine atom, a chlorine atom,or a bromine atom, a hydroxy group, a C₁ to C₅ linear or branched alkoxygroup such as a methoxy group, or an ethoxy group, and a C₁ to C₅ linearor branched alkyl group optionally substituted with a halogen atom suchas a methyl group, an ethyl group, or a trifluoromethyl group may bementioned. As the halogen atom of the C₁ to C₅ linear or branched alkylgroup optionally substituted with a halogen atom, a fluorine atom, achlorine atom, or a bromine atom may be mentioned.

Among the compounds represented by the formula (I), particularlypreferable examples are listed below.

wherein, R¹ to R⁷ and X are the same as defined above.

The compounds having the formula (I) of the present invention includeisomers thereof. The present invention includes all of the individualisomers and mixtures thereof. That is, in the formula (I), there arestructural isomers resulting from the difference in orientation of thesubstituent on the benzene ring and there are a pair of optical isomersfor the asymmetric carbon atom to which the hydroxy group of thepropanol moiety is bonded. The compounds of the present invention.include all isomers resulting from combinations of these and mixtures ofthe same.

The compounds having the formula (I) according to the present inventioncan be synthesized in, for example, the following manner. These methodswill be explained below.

The compound (Ia) wherein, in the formula (I), A is C(OH) can beobtained in the following way. That is, it is possible to obtain thecompound (III) from the known starting material (II) (Step 1) andconvert it to the compound (IV) (Step 2). Reaction of the compound (V)and the compound (VIa) or (VIb) gives the compound (VIIa), (VIIb) or(VIIc) (Step 3), which is then allowed to react with the compound (IV)to afford the compound (Ia) (Step 4).

The compound (Ib) wherein, in the formula (I), A is CH can be obtainedby converting the compound (III) into the compound (X) (Step 5) followedby the reaction with the compound (VIIa) or (VIIb) (Step 6).

The compound (Ic) wherein, in the formula (I), A is anitrogen atom canbe obtained by converting the compound (XI) or (XIII) into the compound(XII) or (XII′) (Step 7, 8) followed by the reaction with the compound(VIIa) or (VIIb) (Step 9).

Step 1

It is possible to synthesize the compound (III) from the known startingsubstance (II) by the following method.

wherein, X and Q are the same as defined above, D represents a benzylgroup, a p-methoxybenzyl group, a benzyloxycarbonyl group, ap-methoxybenzyloxycarbonyl group, p-nitrobenzyloxycarbonyl group, atert-butoxycarbonyl group, an ethoxycarbonyl group, or an acetyl group.

That is, an aryl bromide derivative (II) is converted by conventionalmethod to the corresponding aryl Grignard reagent or aryl lithiumreagent, then reacted in tetrahydrofuran, diethyl ether, ethylene glycoldimethyl ether, toluene, or another solvent not participating in thereaction, at −100° C. to 50° C., preferably −78° C. to room temperature,with 1 to 1.5 equivalents of the known starting materialN-benzyl-4-piperidone, N-(p-methoxybenzyl)-4-piperidone,N-benzyloxycarbonyl-4-piperidone,N-(p-methoxybenzyloxycarbonyl)-4-piperidone,N-(p-nitrobenzyloxycarbonyl)-4-piperidone,N-tert-butoxycarbonyl-4-piperidone, N-ethoxycarbonyl-4-piperidone, orN-acetyl-4-piperidone for 1 to 6 hours, whereby a compound having theformula (III) is obtained.

The starting substance (II) used in the present reaction is a knowncompound or alternatively can be synthesized by known methods [L. Martinet al.: J. Med. Chem., 22, 1347 (1979); J.-P. Genet et al.: TetrahedronLett., 37, 3857 (1996); G. Faye Crr et al.: J. Med. Chem., 40, 1179(1997)]. For example, 4-bromodiphenyl ether, 4-bromophenyl ether,4-bromo-4′-fluorodiphenyl ether, 4-bromo-3′-fluorodiphenyl ether,4-bromo-2′-fluorodiphenyl ether, 4-bromodiphenyl methane,4-bromo-4′-fluorodiphenyl methane, 4-bromo-4′-chlorodiphenyl methane,4-bromo-4′-methoxydiphenyl methane, 4-bromo-4′-trifluoromethyldiphenylmethane, 4-bromobiphenyl, 4-bromo-2-fluorobiphenyl,4-bromo-4′-fluorobiphenyl, 4-bromo-4′-methoxybiphenyl,4-bromo-4′-methylbiphenyl, 4-bromo-4′-trifluoromethylbiphenyl,4,4,-dibromobiphenyl, 4-bromophenylcyclopentyl ether,4-bromophenylcyclohexyl ether, etc. can be used.

As the conditions for preparing the Grignard reagent and theorganolithium reagent, it is possible to use the various methodsdescribed in the “Compendium for Organic Synthesis” (Wiley-Interscience:A Division of John Wiley & Sons) etc.

The compound obtained in the above reaction can be used as is for thenext step or, if necessary, can be used after purification by aconventional method such as recrystallization or column chromatography.

Step 2

It is possible to synthesize the compound (IV) from the compound (III)obtained in Step 1.

wherein, X and Q are the same as defined above, D′ represents a benzylgroup, a p-methoxybenzyl group, a benzyloxycarbonyl group, ap-methoxybenzyloxycarbonyl group, or a p-nitrobenzyloxycarbonyl group.

The compound (III) obtained in Step 1 can be converted to the compoundhaving the formula (IV) by hydrogenation in ethyl acetate, methanol,ethanol, isopropyl alcohol, or another solvent not participating in thereaction, in the presence of a catalytic amount of palladium carbon,palladium hydroxide, platinum, etc. at a pressure to 6 atmospheres.Further, in the reaction, if necessary, acetic acid, hydrochloric acid,or other acid may be added.

Step 3

The compound (V) can be reacted with the compound (VIa) or (VIb) tosynthesize the compound (VIIa), (VIIb) or (VIIc).

wherein, R¹ to R⁴, E¹ and E² are the same as defined above, R⁸represents an optionally substituted alkyl group, an optionallysubstituted aryl group, an optionally substituted aralkyl group, abenzyl group, a p-methoxybenzyl group, a benzyloxycarbonyl group, ap-methoxybenzyloxycarbonyl group, a p-nitrobenzyloxycarbonyl group, atert-butoxycarbonyl group, an ethoxycarbonyl group, an acetyl group, ora formyl group, and L represents a group which can be easily exchangedwith an amino group.

That is, the compound (V) is stirred in benzene, toluene,tetrahydrofuran, dioxane, dimethylformamide, dimethylsulfoxide,acetonitrile, acetone, methanol, ethanol, isopropyl alcohol, tert-butylalcohol, ethylene glycol or another solvent not participating in thereaction and, if necessary, in the presence of an organic base such astriethylamine, diisopropylethylamine, or ;pyridine or an inorganic basesuch as sodium, sodium hydride, potassium, potassium hydride, sodiummethoxide, sodium ethoxide, potassium ethoxide, potassium tert-butoxide,sodium carbonate, potassium carbonate, cesium carbonate, cesiumfluoride, sodium hydrogencarbonate, or potassium hydrogencarbonate at−20° C. to 150° C., preferably 0° C. to 100° C., with 1.0 to 1.5equivalents of the compound (VIa) or (VIb), whereby the compound (VIIa),(VIIb) or (VIIc) is obtained. Further, in this reaction, if necessary, aplurality of organic bases and inorganic bases may be combined for useor sodium iodide or tetrabutylammonium iodide etc. may be added. L is aleaving group easily exchangeable with an amino group. A halogen atomsuch as a chlorine atom, a bromine atom, or an iodine atom, analkylsulfonyloxy group such as a methanesulfonyloxy group, anarylsulfonyloxy group such as a p-toluenesulfonyloxy group or a3-nitrobenzenesulfonyloxy group, etc. may be exemplified.

As the compounds (V), (VIa) and (VIb) used in this reaction,commercially available or known compounds or alternatively those whichcan be synthesized by known methods can be used. As the compound (V),4-(tert-butoxycarbonylamino)-phenol, 4-(benzyloxycarbonylamino)-phenol,4-(p-methoxybenzyloxycarbonylamino)-phenol,4-(p-nitrobenzyloxycarbonylamino)-phenol,4-(tert-butoxycarbonylamino)-2,3,5-trimethylphenol,4-(benzyloxycarbonylamino)-2,3,5-trimethylphenol,4-(p-methoxybenzyloxycarbonylamino)-2,3,5-trimethylphenol,4-(p-nitrobenzyloxycarbonylamino)-2,3,5-trimethylphenol,4-(tert-butoxycarbonylamino)-2-chloro-3,5,6-trimethylphenol,4-(benzyloxycarbonylamino)-2-chloro-3,5,6-trimethylphenol,4-(p-methoxybenzyloxycarbonylamino)-2-chloro-3,5,6-trimethylphenol,4-(p-nitrobenzyloxycarbonylamino)-2-chloro-3,5,6-trimethylphenol,4-(tert-butoxycarbonylamino)-2,3,6-trimethylphenol,4-(benzyloxycarbonylamino)-2,3,6-trimethylphenol,4-(p-methoxybenzyloxycarbonylamino)-2,3,6-trimethylphenol,4-(p-nitrobenzyloxycarbonylamino)-2,3,6-trimethylphenol,4-(tert-butoxycarbonylamino)-2,3-dimethylphenol,4-(benzyloxycarbonylamino)-2,3-dimethylphenol,4-(p-methoxybenzyloxycarbonylamino)-2,3-dimethylphenol,4-(p-nitrobenzyloxycarbonylamino)-2,3-dimethylphenol,4-(tert-butoxycarbonylamino)-2,5-dimethylphenol,4-(benzyloxycarbonylamino)-2,5-dimethylphenol,4-(p-methoxybenzyloxycarbonylamino)-2,5-dimethylphenol,4-(p-nitrobenzyloxycarbonylamino)-2,5-dimethylphenol,2-(tert-butoxycarbonylamino)-4,6-dimethylphenol,2-(benzyloxycarbonylamino)-4,6-dimethylphenol,2-(p-methoxybenzyloxycarbonylamino)-4,6-dimethylphenol,2-(p-nitrobenzyloxycarbonylamino)-4,6-dimethylphenol,5-(tert-butoxycarbonylamino)-2-methoxyphenol,5-(benzyloxycarbonylamino)-2-methoxyphenol,5-(p-methoxybenzyloxycarbonylamino)-2-methoxyphenol,5-(p-nitrobenzyloxycarbonylamino)-2-methoxyphenol,5-(tert-butoxycarbonylamino)-4-chloro-2-methoxyphenol,5-(benzyloxycarbonylamino)-4-chloro-2-methoxyphenol,5-(p-methoxybenzyloxycarbonylamino)-4-chloro-2-methoxyphenol,5-(p-nitrobenzyloxycarbonylamino)-4-chloro-2-methoxyphenol,4-(tert-butoxycarbonylamino)-2,6-dichlorophenol,4-(benzyloxycarbonylamino)-2,6-dichlorophenol,4-(p-methoxybenzyloxycarbonylamino)-2,6-dichlorophenol,4-(p-nitrobenzyloxycarbonylamino)-2,6-dichlorophenol,4-(tert-butoxycarbonylamino)-2,3,4,6-tetramethylaniline,4-(benzyloxycarbonylamino)-2,3,4,6-tetramethylaniline,4-(p-methoxybenzyloxycarbonylamino)-2,3,4,6-tetramethylaniline,4-(p-nitrobenzyloxycarbonylamino)-2,3,4,6-tetramethylaniline,4-methoxy-2-methylaniline, etc. may be exemplified.

As the compound (VIa), epibromohydrin, epichlorohydrin,(R)-epichlorohydrin, (S)-epichlorohydrin, glycidyltosylate,(R)-glycidyltosylate, (S)-glycidyltosylate, (R)-glycidyl3-nitrobenzenesulfonate, (S)-glycidyl 3-nitrobenzenesulfonate,(R)-glycidyl 4-nitrobenzoate, (S)-glycidyl 4-nitrobenzoate, glycidyltrimethylammonium chloride, etc. may be exemplified.

As the compound (VIb), 3-bromo-1,2-propanediol,3-chloro-1,2-propanediol, (R)-3-chloro-1,2-propanediol,(S)-3-chloro-1,2-propanediol, etc. may be exemplified.

Step 4

The compound (IV) obtained in Step 2 and the compound (VIIa), (VIIb) or(VIIc) obtained in Step 3 can be reacted to synthesize the compound (Ia)where in the formula (I), A is C(OH).

wherein R¹ to R⁵, R⁸, E¹, E², X, Q, and L are the same as defined above

The compound (VIIa) or (VIIb) obtained at Step 3 is reacted in benzene,toluene, tetrahydrofuran, diethyl ether, ethylene glycol dimethylether,dioxane, dimethylformamide, dimethylsulfoxide, acetonitrile, methanol,ethanol, isopropyl alcohol, tert-butyl alcohol, ethylene glycol, oranother solvent not participating in the reaction at room temperature to200° C., preferably 50° C., to 150° C., with 0.9 to 1.5 equivalents ofthe compound (IV) obtained in Step 2 for 1 to 24 hours, whereby thecompound (VIII) can be obtained.

Further, the compound (VIIc) obtained in Step 3 is converted to thecompound (VIIa) or (VIIb) by known methods [e.g., K. B. Sharpless etal.: Tetrahedron, 48, 10515 (1992); S. Takano et al.: Synthesis, 503(1985); A. K. Ghosh et al.: J. Chem. Soc., Chem. Commun., 273 (1992); M.K. Ellis et al.: Organic Synthesis, Collective Volume 7, 356 (1990); S.Takano et al.: Heterocycles, 16, 381 (1981); A. K. M. Anisuzzaman etal.: J. Chem. Soc., C, 1021 (1967)], followed by carrying out the samereactions with the compound (IV) to give the compound (VIII).

Further, in this reaction, if necessary, an organic base such astriethylamine, diisopropylethylamine, or pyridine, an inorganic basesuch as sodium carbonate, potassium carbonate, cesium carbonate, cesiumfluoride, sodium hydrogencarbonate, or potassium hydrogencarbonate, or ametal salt such as sodium iodide, tetrabutylammonium iodide, lithiumcarbonate, lithium chloride, zinc bromide, or magnesium bromide may beadded alone or in combination.

Further, by hydrogenation of the compound (VIII) where R⁸ is a benzylgroup, a p-methoxybenzyl group, a benzyloxycarbonyl group, ap-methoxybenzyloxycarbonyl group, or a p-nitrobenzyloxycarbonyl group orby an acid treatment with hydrochloric acid, sulfuric acid, nitric acid,hydrobromic acid, trifluoroacetic acid, methanesulfonic acid,trifluoromethanesulfonic acid, etc. of the compound (VIII) where R⁸ is atert-butoxycarbonyl group, a p-methoxybenzyloxycarbonyl group, anethoxycarbonyl group, an acetyl group, or a formyl group, it is possibleto synthesize the compound (Ia) wherein, in the formula (I), A is C(OH).

The compounds obtained by the above reactions can be used as they arefor the next step or, if necessary, can be used after purification by aconventional method such as recrystallization or column chromatography.

Further, the reactions in Step 3 and Step 4 can be carried outsuccessively in one-pot without isolating the compounds obtained by theeach reaction.

Step 5

The compound (X) can be synthesized from the compound (III) obtained inStep 1.

wherein, X, Q, and D are the same as defined above, D″ represents ahydrogen atom, a benzyl group, a p-methoxybenzyl group, abenzyloxycarbonyl group, a p-methoxybenzyloxycarbonyl group, or ap-nitrobenzyloxycarbonyl group.

The compound (III) obtained in Step 1 is treated under non-solventconditions or in a solvent not participating in the reaction, forexample, tetrahydrofuran, diethyl ether, ethylene glycoldimethyl ether,benzene, toluene, methylene chloride, chloroform, carbon tetrachloride,water, methanol, or ethanol at −20° C. to 150° C., preferably 0° C. to80° C., with 1 to 20 equivalents of an organic acid such as acetic acid,trifluoroacetic acid, methanesulfonic acid, or trifluoromethanesulfonicacid or an inorganic acid such as hydrochloric acid, sulfuric acid, ornitric acid for 1 to 12 hours or the compound (III) is treated in asolvent not participating in the reaction, for example, benzene,toluene, methylene chloride, chloroform, or carbon tetrachloride, ifnecessary, in the presence of triethylamine, pyridine, ordiisopropylethylamine, or other bases at −20° C. to 150° C., preferably0° C. to 100° C., with 1 to 5 equivalents of thionyl chloride,methanesulfonyl chloride, trifluoromethanesulfonyl chloride,trifluoromethanesulfonate anhydride, p-toluenesulfonyl chloride,phosphorus oxychloride, or other acid chloride derivatives for 1 to 6hours, and the subsequent acid.treatment similar to the above isrepeated, whereby the compound (IX) is obtained. Next, the compound (IX)is processed by a similar method as in Step 2, to give the compoundhaving the formula (X).

The compounds obtained by the above reactions can be used as they arefor the next step, but if necessary can also be used after purificationby a conventional method such as recrystallization or columnchromatography.

Step 6

Starting with the compound (VIIa), (VIIb) or (VIIc) obtained in Step 3and the compound (X) obtained in Step 5, it is possible to synthesizethe compound (Ib) wherein, in the formula (I), A is CH, by a similarmethod as in Step 4.

wherein, R¹ to R⁵, E¹ ₁, E², X, and Q are the same as defined above.

Step 7

It is possible to synthesize the compound (XII) from compound (XI).

wherein, X and Q are the same as defined above.

That is, an aniline derivative having the general formula (XI) isreacted under non-solvent conditions or in a solvent not participatingin the reaction, such as n-butanol, tert-butyl alcohol, ethylene glycol,diglyme, dimethylformamide or dimethylsulfoxide at 50 to 300° C.,preferably 150 to 250° C., with 1 to 1.5 equivalents of knownbis-2-chloroethylamine hydrochloride for 1 to 12 hours, whereby thecompound having the general formula (XII) is obtained.

The starting substance (XI) used in this reaction may be a commerciallyavailable or a known compound [K. Suzuki et al.: J. Org. Chem., 26, 2239(1961)] or alternatively can be synthesized by a known method as forexample disclosed in Japanese Examined Patent Publication (Kokoku) No.6-25191. For example, 4-phenoxyaniline, 4-(4-fluorophenoxy)aniline,4-benzylaniline, 4-(4-fluorophenyl)methylaniline,4-(4-methoxyphenyl)methylaniline, 4-(4-chlorophenyl)methylaniline,4-(4-trifluoromethylphenyl)methylaniline, 4-benzyl-3-methoxyaniline,4-(4-fluorophenyl)methyl-3-methoxyaniline,3-fluoro-4-(4-fluorophenyl)methylaniline,3-fluoro-4-(4-methoxyphenyl)methylaniline,3-methoxy-4-(4-methoxyphenyl)methylaniline, 4-aminobiphenyl, etc. may bementioned.

Further, in this reaction, if necessary, an inorganic base such assodium hydrogencarbonate, potassium hydrogencarbonate, sodium carbonate,or potassium carbonate may be added.

The compound obtained in the above reaction may be used as is for thenext step, but if necessary may also be used after purification by aconventional method, such as recrystallization or column chromatography.

Step 8

The compound (XII′) among the compound represented by the formula (XII),wherein Q is an optionally substituted phenylmethyl group can besynthesized from the compound (XIII) and compound (XIV).

wherein L and X are the same as defined above, Q′ represents anoptionally substituted phenyl group, and W represents a hydrogen atom, abenzyl group, a p-methoxybenzyl group, a benzyloxycarbonyl group, ap-methoxybenzyloxycarbonyl group, a p-nitrobenzyloxycarbonyl group, atert-butoxycarbonyl group, an ethoxycarbonyl group or an acetyl group.

That is, a benzophenone derivative (XIII) is reacted with 1 to 20equivalents of piperazine derivative (XIV) at 50-300° C. for 1 hour to20 days under non-solvent conditions, or in a solvent not participatingin the reaction, such as methanol, ethanol, n-butanol, tert-butylalcohol, acetonitrile, nitromethane, dioxane, tetrahydrofuran,dimethylacetamide, dimethylsulfoxide, N-methyl-2-pyrrolidone, to givethe compound (XV). In this reaction, if necessary, an organic base suchas triethylamine, diisopropylethylamine, pyridine, or an inorganic basesuch as sodium, sodium hydride, potassium hydride, sodium ethoxide,potassium tert-butoxide, sodium carbonate, potassium carbonate, cesiumcarbonate, cesium fluoride, sodium hydrogenbicarbonate, potassiumhydrogenbicarbonate, or any combination thereof may be added.

Then, the compound (XV) is treated in the same way as in Step 2, or istreated with 1 to 20 equivalents of sodium, triethylsilane or borane ina solvent not participating in the reaction, such as ether,tetrahydrofuran, dioxane, 1,2-dimethoxyethane, methylene chloride,chloroform, benzene, toluene, acetic acid, trifluoroacetic acid,methanesulfonic acid, trifluoromethanesulfonic acid, liquid ammonia,methanol, ethanol, 2-propanol, to give the compound (XII′). Ifnecessary, in this reaction, a catalytic amount of acid such ashydrochloric acid, sulfuric acid, hydrobromic acid, nitric acid, borantrifluoride may be added. Furthermore, the compound which W representsan ethoxycarbonyl group or an acetyl group in the general formula (XV)can be converted into the compound (XII′) by the above mentionedprocedure followed by stirring at 50-200° C. for 1 hour to 3 days in anaqueous acidic solution such as acetic acid, acetic acid/hydrochloricacid, hydrobromic acid, sulfuric acid.

As the compound (XIII) usable in the present reaction, for example,2,4-difluorobenzophenone, 2,4′-difluorobenzophenone,3,4-difluorobenzophenone, 4,4′-difluorobenzophenone,4-bromo-4′-fluorobenzophenone, 4-chloro-4′-fluorobenzophenone,4-fluoro-4′-methoxybenzophenone, 4′-bromo-4′-methoxybenzophenone,4-fluoro-4′-methylbenzophenone, 4-bromo-4′-methylbenzophenone may bementioned. As the compound (XIV), for example, piperazine,1-benzylpiperazine, 1-(p-methoxybenzyl)piperazine,1-benzyloxycarbonylpiperazine, 1-(p-methoxybenzyloxycarbonyl)piperazine,1-(p-nitrobenzyloxycarbonyl)piperazine,1-(tert-butoxycarbonyl)piperazine, 1-ethoxycarbonylpiperazine,1-acetylpiperazine may be mentioned.

The compound obtained in the above each reaction can be used as is forthe next step or, if necessary, can be used after purification by aconventional method such as recrystallization or column chromatography.

Step 9

Starting with the compound (VIIa), (VIIb) or (VIIc) obtained in Step 3and the compound (XII) obtained in Step 7 or the compound (XII′)obtained in Step 8, it is possible to synthesize the compound (Ic)where, in the general formula (I), A is a nitrogen atom, by a similarmethod as in Step 4.

wherein, R¹ to R⁵, E¹, E², X, and Q are the same as defined above.

Individual isomers included in the compounds of general formula (I) ofthe present invention can be separated by a conventional method, forexample, recrystallization, column chromatography, thin layerchromatography, high performance liquid chromatography, or a similarmethod using optically active reagents.

The compound having the general formula (I) of the present invention canbe dissolved in a suitable organic solvent, for example, methanol,ethanol, isopropyl alcohol, tert-butyl alcohol, ether, tetrahydrofuran,methylene chloride, chloroform, benzene, toluene, and treated with aninorganic acid or an organic acid to afford the corresponding salt. Asthe inorganic acid used here, hydrochloric acid, hydrobromic acid,sulfuric acid, nitric acid, phosphoric acid, periodic acid, etc. and asthe organic acid, formic acid, acetic acid, butyric acid, oxalic acid,malonic acid, propionic acid, valeric acid, succinic acid, fumaric acid,maleic acid, tartaric acid, citric acid, malic acid, benzoic acid,p-toluenesulfonic acid, methanesulfonic acid, ethanesulfonic acid,2-hydroxyethanesulfonic acid, trifluoromethanesulfonic acid,benzenesulfonic acid, etc. may be mentioned.

It should be noted that the salts comprising 1 to 3 molecules of theacid can be selectively prepared by adjusting the amount of theabove-mentioned inorganic acid or organic acid used between 1 to 3equivalents depending upon the number of the basic nitrogen atom presentin the compound (I).

The crude crystal of the resultant salt can be purified byrecrystallization thereof from a solvent such as water, methanol,ethanol, isopropyl alcohol, tert-butyl alcohol, ether, diisopropylether, tetrahydrofuran, methylene chloride, chloroform, dichloroethane,hexane, cyclohexane, petroleum ether, acetonitrile, acetic acid, ethylacetate or any mixture thereof. In this purification step, a smallamount of an inorganic or organic acid corresponding to the salt may beadded.

The compound having the formula (I) of the present invention is low intoxicity and can be used alone by itself, or if desired, can beconverted into a pharmaceutical preparation with other normalpharmaceutically allowable known and generally used carriers designedfor the alleviation and treatment of symptoms due to ischemic diseasesand neurodegenerative diseases, symptoms derived from seizures,epilepsy, and migraine headaches and symptoms arising from diabetes,arteriosclerosis, and inflammatory diseases. For example, the effectiveingredient can be administered orally or nonorally by itself or acapsule, tablet, injection, or a suitable preparation together withusually used excipients. For example, capsules can be prepared by mixingthe original powder with an excipient such as lactose, starch or itsderivative, or a cellulose derivative and filling the resultant mixtureinto gelatin capsules. Further, tablets can be prepared by kneading in,in addition to the above excipient, sodium carboxymethylcellulose,alginic acid, arabic gum or other binders and water, if necessary,granulating the same, then further adding talc, stearic acid, or otherlubricants and preparing the final form using a normal compressiontabletizer. At the time of non-oral administration by injection, theeffective ingredient is dissolved with a solubilizer in sterilizeddistilled water or sterilized saline and sealed into an ampule to makethe injection preparation. If necessary, it is also possible to add astabilizer, buffer, etc.

The dosage of the pharmaceutical composition of the present inventiondiffers depending on various factors, for example, the symptoms, thegravity of symptoms, the age, the complications of the patient to betreated, etc. and further depending on the route of administration, theform of the preparation, the frequency of administration, etc. In thecase of oral administration, as the effective ingredient, normally 0.1to 1000 mg/day/person, preferably 1 to 500 mg /day/person, while in thecase of non-oral administration, 1/100 to 1/2 the amount of the case oforal administration can be administered. The amounts of dosages may besuitably adjusted according to the age, symptoms, etc. of the patient.

EXAMPLES

The present invention will now be explained in further detail withreference to the Reference Examples and Examples, but the scope of thepresent invention is by no means limited to these Examples.

Reference Example 1 Synthesis ofN-tert-butoxycarbonyl-4-[4-(4-fluorophenoxy)phenyl]-4-piperidinol (1)(Note: Compound No. 1 in Table 1 (Same Below))

To a 10 ml of tetrahydrofuran solution of 4.08 g ofN-tert-butoxycarbonyl-4-piperidone, a 30 ml of (4-fluorophenoxy)phenylmagnesium bromide prepared from 4-bromo-4′-fluorodiphenylether (0.6mol/l tetrahydrofuran solution) was dropwise added under ice cooling andthe resultant mixture was stirred for 1 hour. To the reaction mixture, a30 ml of saturated aqueous ammonium chloride solution was added and theproduct was extracted with ether. The extract was washed with saturatedsaline, dried, filtered, then concentrated under reduced pressure togive a residue, which was then purified by silica gel columnchromatography (hexane:ethyl acetate=5:1) to give the above-referencedcompound (1) in an amount of 2.45 g (yield 42%).

Reference Example 2 Synthesis ofN-benzyl-4-(3-fluoro-4-phenyl)phenyl-4-piperidinol (2)

The same procedure was followed as in Reference Example 1 usingN-benzyl-4-piperidone and 4-bromo-2-fluorobiphenyl to produce the above.

Reference Example 3 Synthesis ofN-tert-butoxycarbonyl-4-(4-cyclopentyloxy)phenyl-4-piperidinol

The same procedure was followed as in Reference Example 1 using4-bromophenoxycyclopentane to produce the above.

Reference Example 4 Synthesis of4-[4-(4-fluorophenoxy)phenyl]-1,2,3,6-tetrahydropyridine (4)

To a 15 ml methylene chloride solution of 2.4 g of the compound (I)synthesized in Reference Example 1, a 5 ml of trifluoroacetic acid wasdropwise added under ice cooling. The resultant mixture was stirred atroom temperature overnight, then was adjusted by 10% aqueous sodiumhydroxide solution to pH=9 to 10 and extracted with ether. The extractwas dried, filtered, then concentrated under reduced pressure to give aresidue, which was then purified by silica gel column chromatography(chloroform:methanol=10:1) to give the above-referenced compound (4) inan amount of 1.62 g (yield 97%).

Reference Example 5 Synthesis of4-(4-cyclopentyloxy)phenyl-1,2,3,6-tetrahydropyridine (5)

The compound (3) synthesized in Reference Example 3 was used to producethe above in the same way as in Reference Example 4.

Reference Example 6 Synthesis of 4-(4-cyclopentyloxy)phenylpiperidine(7)

The compound (5) synthesized in Reference Example 5 was used to producethe above in the same way as in the later Example 1.

Reference Example 7 Synthesis of 4-(4-phenoxyphenyl)piperidine

Step A

To an 100 ml tetrahydrofuran solution of 3.5 g ofN-tert-butoxycarbonyl-4-piperidone, a 35 ml of 4-phenoxyphenyl magnesiumbromide prepared from 4-bromodiphenyl ether (0.6 mol/l tetrahydrofuransolution) was dropwise added under ice cooling and the resultant mixturewas stirred for 1 hour. To the reaction mixture was added a 30 ml ofsaturated aqueous ammonium chloride solution. The product was extractedwith ether. The extract was washed with saturated saline, dried,filtered, then concentrated under reduced pressure to give a residue,which was then purified by silica gel column chromatography(hexane:ethyl acetate=3:1) to giveN-tert-butoxycarbonyl-4-(4-phenoxyphenyl)-4-piperidinol in an amount of2.92 g (yield 45%).

Step B

To a 3.ml of methylene chloride solution of 772 mg ofN-tert-butoxycarbonyl-4-(4-phenoxyphenyl)-4-piperidinol synthesized inStep A, a 3 ml of trifluoroacetic acid was dropwise added under icecooling. The resultant mixture was stirred at room temperature for 2hours, then adjusted by 10% aqueous sodium hydroxide solution to pH=9 to10 and extracted with ether. The extract was dried, filtered, thenconcentrated under reduced pressure to give a residue, which was thenrecrystallized from ether/methylene chloride to give4-(4-phenoxyphenyl)-1,2,3,6-tetrahydropyridine in an amount of 250 mg(yield 47%).

Step C

To an 100 ml methanol solution of 3.51 g of the4-(4-phenoxyphenyl)-1,2,3,6-tetrahydropyridine synthesized in Step B wasadded a 200 mg of palladium carbon and 1 ml of acetic acid. Theresultant mixture was hydrogenated under atmospheric pressure at roomtemperature. After completion of the reaction, the insolubles werefiltered off and the filtrate was concentrated under reduced pressure.The residue obtained was dissolved in methylene chloride, adjusted by10% aqueous sodium hydroxide solution to pH=9 to 10, then shaken. Theorganic layer was dried, filtered, then concentrated under reducedpressure to give a residue, which was then purified by silica gel columnchromatography (methylene chloride:methanol=20:1) to give theabove-referenced compound, 4-(4-phenoxyphenyl)piperidine in an amount of2.32 g (yield 66%).

Reference Example 8 Synthesis of4-[4-(4-fluorophenyl)methylphenyl]piperidine

To a 25 ml ether solution of 2.5 g of 4-bromo-4′-fluorodiphenylmethanewas gradually dropwise added at −78° C. a 6.5 ml of n-butyllithium (1.6mol/l hexane solution). After being warmed up to −20° C., then stirredfor 1 hour, an 8 ml tetrahydrofuran solution of 1.8 g ofN-tert-butoxycarbonyl-4-piperidone was dropwise added. The mixture wasstirred at 0° C. for 1 hour, then a 15 ml of saturated aqueous ammoniumchloride solution was added and the product was extracted with ether.The extract was washed with saturated saline, dried, filtered, thenconcentrated under reduced pressure to give a residue, which waspurified by silica gel column chromatography (hexane:ethyl acetate=4:1)to giveN-tert-butoxycarbonyl-4-[4-(4-fluorophenyl)methylphenyl]-4-piperidinolin an amount of 2.69 g (yield 77%).

The obtainedN-tert-butoxycarbonyl-4-[4-(4-fluorophenyl)methylphenyl]-4-piperidinolwas used in the same way as Step B in Reference Example 7 to produce4-[4-(4-fluorophenyl)methylphenyl]-1,2,3,6-tetrahydropyridine.

The obtained4-[4-(4-fluorophenyl)methylphenyl]-1,2,3,6-tetrahydropyridine was usedin the same way as Step C in Reference Example 7 to produce theabove-referenced compound, 4-[4-(4-fluorophenyl)methylphenyl]piperidine.

Reference Example 9 Synthesis of1-[4-(4-fluorophenyl)methylphenyl]piperazine

To a 10 ml acetonitrile solution of 426 mg of 4,4′-difluorobenzophenoneand 841 mg of piperazine, 395 mg of triethylamine was added and stirredat 100° C. for 12 hours. After cooling to room temperature, saturatedaqueous sodium hydrogenbicarbonate solution was added, followed byextracting with chloroform. The extract was dried, filtered andconcentrated under reduced pressure. The residue obtained was dissolvedin 5 ml of trifluoroacetic acid and treated with 520 mg oftriethylsilane and 60 mg of concentrated sulfuric acid, and stirred atroom temperature for 1 hour. The reaction, mixture was adjusted to pH=9to 11 with 10% aqueous sodium hydroxide solution, followed by extractingwith ethyl acetate. The extract was dried, filtered and concentratedunder reduced pressure to give a residue, which was purified by silicagel column chromatography (chloroform:methanol:water (2% aceticacid)=65:35:5) to give the above-referenced compound,1-[4-(4-fluorophenyl)methylphenyl]piperazine in an amount of 305 mg(yield 58%).

Example 1 Synthesis of 4-[(4-fluorophenoxy)phenyl]piperidine (6)

To an 100 ml methanol solution of 1.25 g of the compound (4) synthesizedin Reference Example 4 was added 200 mg of palladium carbon and 1 ml ofacetic acid. The resultant mixture was hydrogenated under atmosphericpressure at room temperature. After the end of the reaction, theinsolubles were filtered off, and the filtrate was concentrated underreduced pressure. The residue thus obtained was then purified by silicagel column chromatography (methylene chloride:methanol=10:1) to give theabove-referenced compound (6) in an amount of 1.17 g (yield 93%).

Example 2 Synthesis of 4-(3-fluoro-4-phenyl)phenyl-4-piperidinol (8)

To a 50 ml methanol solution of 1.39 g of the compound (2) synthesizedin Reference Example 2 was added 280 mg of palladium hydroxide. Theresultant mixture was hydrogenated at room temperature under 5atmospheres. After the end of the reaction, the insolubles were filteredoff, the filtrate was concentrated under reduced pressure. The residueobtained was then purified by silica gel column chromatography(methylene chloride:methanol=10:1) to give the above-referenced compound(8) in an amount of 710 mg (yield 68%).

Example 3 Synthesis of(2S)-1-[4-(tert-butoxycarbonylamino)phenoxy]-2,3-epoxyoropane (9)

To an 8 ml dimethylformamide suspension of 60 mg of sodium hydride wasadded, under ice cooling, 300 mg of 4-(tert-butoxycarbonylamino)phenol.The resultant mixture was stirred at room temperature for 1 hour. Underice cooling, 372 mg of (S)-glycidyl 3-nitrobenzenesulfonate wasgradually added, then the resultant mixture was stirred at roomtemperature for 2 hours. The reaction was quenched with a 5 ml ofsaturated aqueous ammonium chloride solution, then the product wasextracted with ether. The extract was washed with saturated saline,dried, filtered, then concentrated under reduced pressure to give aresidue, which was then purified by silica gel column chromatography(hexane:ethyl acetate=3:1) to give the above-referenced compound (9) inan amount of 315 mg (yield 83%).

Example 4 Synthesis of(2S)-1-[(4-tert-butoxycarbonylamino-2,3,5-trimethyl)phenoxy]-2,3-epoxypropane(10)

The same procedure was followed as in Example 3 using(4-tert-butoxycarbonylamino-2,3,5-trimethyl)phenol to produce the above.

Example 5 Synthesis of(2S)-1-[(4-tert-butoxycarbonylamino-2,5-dimethyl)phenoxy]-2,3-epoxypropane(11)

The same procedure was followed as in Example 3 using(4-tert-butoxycarbonylamino-2,5-dimethyl)phenol to produce the above.

Example 6 Synthesis of(2S)-1-[(4-tert-butoxycarbonylamino-2,3-dimethyl)phenoxy]-2,3-epoxypropane(12)

The same procedure was followed as in Example 3 using(4-tert-butoxycarbonylamino-2,3-dimethyl)phenol to produce the above.

Example 7 Synthesis of(2S)-1-[(4-tert-butoxycarbonylamino-2,3,6-trimethyl)phenoxy]-2,3-epoxypropane(13)

The same procedure was followed as in Example 3 using(4-tert-butoxycarbonylamino-2,3,6-trimethyl)phenol to produce the above.

Example 8 Synthesis of(2S)-1-[(5-tert-butoxycarbonylamino-2-methoxy)phenoxy]-2,3-epoxypropane(14)

The same procedure was followed as in Example 3 using(5-tert-butoxycarbonylamino-2-methoxy)phenol to produce the above.

Example 9 Synthesis of(2S)-1-[(2-tert-butoxycarbonylamino-4,6-dimethyl)phenoxy]-2,3-epoxypropane(15)

The same procedure was followed as in Example 3 using(2-tert-butoxycarbonylamino-4,6-dimethyl)phenol to produce the above.

Example 10 Synthesis of(2S)-1-[(5-tert-butoxycarbonylamino-4-chloro-2-methoxy)phenoxy]-2,3-epoxypropane(16)

The same procedure was followed as in Example 3 using(5-tert-butoxycarbonylamino-4-chloro-2-methoxy)phenol to produce theabove.

Example 11 Synthesis of(2S)-1-[(4-tert-butoxycarbonylamino-2,6-dichloro)phenoxy]-2,3-epoxypropane(17)

The same procedure was followed as in Example 3 using(4-tert-butoxycarbonylamino-2,6-chloro)phenol to produce the above.

Example 12 Synthesis of(2S)-1-[(4-tert-butoxycarbonylamino-2-chloro-3,5,6-trimethyl)phenoxy]-2,3-epoxypropane(18)

The same procedure was followed as in Example 3 using(4-tert-butoxycarbonylamino-2-chloro-3,5,6-trimethyl)phenol to producethe above.

Example 13 Synthesis of(2R)-1-[(4-tert-butoxycarbonylamino-2,3,5-trimethyl)phenoxy]-2,3-epoxypropane(19)

The same procedure was followed as in Example 3 using(4-tert-butoxycarbonylamino-2,3,5-trimethyl)phenol and (R)-glycidyl3-nitrobenzenesulfonate to produce the above.

Example 14 Synthesis of(2R)-1-[(5-tert-butoxycarbonylamino-2-methoxy)phenoxy]-2,3-epoxypropane(20)

The same procedure was followed as in Example 3 using(5-tert-butoxycarbonylamino-2-methoxy)phenol and (R)-glycidyl3-nitrobenzenesulfonate to produce the above.

Example 15 Synthesis of1-chloro-3-[(4-methoxy-2-methyl)phenyl]amino-2-propanol (21)

A mixture of 300 mg of 4-methoxy-2-methylaniline and 213 mg ofepichlorohydrin in 5 ml of isopropyl alcohol was stirred at 80° C.overnight. The reaction was concentrated under reduced pressure to givea residue, which was purified by silica gel column chromatography(methylene chloride:hexane:ethyl acetate=10:2:1) to give theabove-referenced compound (21) in an amount of 315 mg (yield 63%).

Example 16 Synthesis of(2R)-1-chloro-3-[(4-methoxy-2-methyl)phenyl]amino-2-propanol (22)

The same procedure was followed as in Example 15 using(R)-epichlorohydrin to produce the above.

Example 17 Synthesis of(2S)-1-chloro-3-[(4-methoxy-2-methyl)phenyl]amino-2-propanol (23)

The same procedure was followed as in Example 15 using(S)-epichlorohydrin to produce the above.

Example 18 Synthesis of1-chloro-3-[(4-tert-butoxycarbonylamino-2,3,5,6-tetramethyl)phenyl]amino-2-propanol(24)

The same procedure was followed as in Example 15 using(4-tert-butoxycarbonylamino-2,3,5,6-tetramethyl)aniline andepichlorohydrin to produce the above.

Example 19 Synthesis of(2S)-1-(4-aminophenoxy)-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(25)

A mixture of 300 mg of the compound (9) synthesized in Example 3 and 287mg of 4-(4-phenoxyphenyl)piperidine synthesized in Reference Example 7in 8 ml of isopropyl alcohol was stirred at 100° C. for 2 hours. Thereaction was concentrated under reduced pressure to give a residue.Under ice cooling, 5 ml of ethanol saturated with hydrochloric acid and2 ml of trifluoroacetic acid were added. The resultant mixture wasstirred at room temperature for 1 hour, then the solvent was removedunder reduced pressure to give crude crystals, which were recrystallizedto give the hydrochloric acid salts of the above-referenced compound(25) in an amount of 156 mg (yield 82%).

Example 20 Synthesis of(2S)-1-[(4-amino-2,3,5-trimethyl)phenoxy]-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(26)

The compound (10) synthesized in Example 4 was used to produce the abovein the same way as in Example 19.

Example 21 Synthesis of(2S)-1-[(4-amino-2,3,5-trimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperidin-1-yl]-2-propanol(27)

The compound (10) synthesized in Example 4 and4-[4-(4-fluorophenyl)methylphenyl]piperidine synthesized in ReferenceExample 8 were used to produce the above in the same way as in Example19.

Example 22 Synthesis of(2S)-1-[(4-amino-2,3,5-trimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanol(28)

The compound (10) synthesized in Example 4 and1-[4-(4-fluorophenyl)methylphenyl]piperazine synthesized in ReferenceExample 9 were used to produce the above in the same way as in Example19.

Example 23 Synthesis of(2S)-1-[(4-amino-2,3,5-trimethyl)phenoxy]-3-[4-(4-(4-fluorophenoxy)phenyl)piperidin-1-yl]-2-propanol(29)

The compound (6) synthesized in Example 1 and the compound (10)synthesized in Example 4 were used to produce the above in the same wayas in Example 19.

Example 24 Synthesis of(2S)-1-[(4-amino-2,3,5-trimethyl)phenoxy]-3-[4-(3-fluoro-4-phenylphenyl)-4-hydroxypiperidin-1-yl]-2-propanol(30)

The compound (8) synthesized in Example 2 and the compound (10)synthesized in Example 4 were used to produce the above in the same wayas in Example 19.

Example 25 Synthesis of(2S)-1-[(4-amino-2,3,5-trimethyl)phenoxy]-3-[4-(4-cyclopentyloxyphenyl)piperidin-1-yl]-2-propanol(31)

The compound (7) synthesized in Reference Example 6 and the compound(10) synthesized in Example 4 were used to produce the above in the sameway as in Example 19.

Example 26 Synthesis of(2S)-1-[(4-amino-2,5-dimethyl)phenoxy]-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(32)

The compound (11) synthesized in Example 5 was used to produce the abovein the same way as in Example 19.

Example 27 Synthesis of(2S)-1-[(4-amino-2,5-dimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperidin-1-yl]-2-propanol(33)

The compound (11) synthesized in Example 5 and4-[4-(4-fluorophenyl)methylphenyl]piperidine synthesized in ReferenceExample 8 were used to produce the above in the same way as in Example19.

Example 28 Synthesis of(2S)-1-[(4-amino-2,5-dimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanol(34)

The compound (11) synthesized in Example 5 and1-[4-(4-fluorophenyl)methylphenyl]piperazine synthesized in ReferenceExample 9 were used to produce the above in the same way as in Example19.

Example 29 Synthesis of(2S)-1-[(4-amino-2,3-dimethyl)phenoxy]-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(35)

The compound (12) synthesized in Example 6 was used to produce the abovein the same way as in Example 19.

Example 30 Synthesis of(2S)-1-[(4-amino-2,3-dimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperidin-1-yl]-2-propanol(36)

The compound (12) synthesized in Example 6 and4-[4-(4-fluorophenyl)methylphenyl]piperidine synthesized in ReferenceExample 8 were used to produce the above in the same way as in Example19.

Example 31 Synthesis of(2S)-1-[(4-amino-2,3-dimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanol(37)

The compound (12) synthesized in Example 6 and1-[4-(4-fluorophenyl)methylphenyl]piperazine synthesized in ReferenceExample 9 were used to produce the above in the same way as in Example19.

Example 32 Synthesis of(2S)-1-[(4-amino-2,3,6-trimethyl)phenoxy]-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(38)

The compound (13) synthesized in Example 7 was used to produce the abovein the same way as in Example 19.

Example 33 Synthesis of(2S)-1-[(4-amino-2,3,6-trimethyl)phenoxy]-3-[4-(4-(4-fluorophenoxy)phenyl)piperidin-1-yl]-2-propanol(39)

The compound (6) synthesized in Example 1 and compound (13) synthesizedin Example 7 were used to produce the above in the same way as inExample 19.

Example 34 Synthesis of(2S)-1-[(4-amino-2,3,6-trimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanol(40)

The compound (13) synthesized in Example 7 and the1-[4-(4-fluorophenyl)methylphenyl]piperazine synthesized in ReferenceExample 9 were used to produce the above in the same way as in Example19.

Example 35 Synthesis of(2S)-1-[(5-amino-2-methoxy)phenoxy]-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(41)

The compound (14) synthesized in Example 8 was used to produce the abovein the same way as in Example 19.

Example 36 Synthesis of(2S)-1-[(5-amino-2-methoxy)phenoxy]-3-[4-(4-(4-fluorophenoxy)phenyl)piperidin-1-yl]-2-propanol(42)

The compound (6) synthesized in Example 1 and the compound (14)synthesized in Example 8 were used to produce the above in the same wayas in Example 19.

Example 37 Synthesis of(2S)-1-[(5-amino-2-methoxy)phenoxy]-3-[4-(414-fluorophenyl)methylphenyl)piperidin-1-yl]-2-propanol(43)

The compound (14) synthesized in Example 8 and4-[4-(4-fluorophenyl)methylphenyl]piperidine synthesized in ReferenceExample 8 were used to produce the above in the same way as in Example19.

Example 38 Synthesis of(2S)-1-[(5-amino-2-methoxy)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanol(44)

The compound (14) synthesized in Example 8 and1-[4-(4-fluorophenyl)methylphenyl]piperazine synthesized in ReferenceExample 9 were used to produce the above in the same way as in Example19.

Example 39 Synthesis of(2S)-1-[(5-amino-2-methoxy)phenoxy]-3-[4-(4-cyclopentyloxyphenyl)piperazin-1-yl]-2-propanol(45)

The compound (7) synthesized in Reference Example 6 and the compound(14) synthesized in Example 8 were used to produce the above in the sameway as in Example 19.

Example 40 Synthesis of(2S)-1-[(2-amino-4,6-dimethyl)phenoxy]-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(46)

The compound (15) synthesized in Example 9 was used to produce the abovein the same way as in Example 19.

Example 41 Synthesis of(2S)-1-[(2-amino-4,6-dimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperidin-1-yl]-2-propanol(47)

The compound (15) synthesized in Example 9 and4-[4-(4-fluorophenyl)methylphenyl]piperidine synthesized in ReferenceExample 8 were used to produce the above in the same way as in Example19.

Example 42 Synthesis of(2S)-1-[(2-amino-4,6-dimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanol(48)

The compound (15) synthesized in Example 9 and1-[4-(4-fluorophenyl)methylphenyl]piperazine synthesized in ReferenceExample 9 were used to produce the above in the same way as in Example19.

Example 43 Synthesis of(2S)-1-[(5-amino-4-chloro-2-methoxy)phenoxy]-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(49)

The compound (16) synthesized in Example 10 was used to produce theabove in the same way as in Example 19.

Example 44 Synthesis of(2S)-1-[(5-amino-4-chloro-2-methoxy)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanol(50)

The compound (16) synthesized in Example 10 and1-[4-(4-fluorophenyl)methylphenyl]piperazine synthesized in ReferenceExample 9 were used to produce the above in the same way as in Example19.

Example 45 Synthesis of(2S)-1-[(4-amino-2,6-dichloro)phenoxy]-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(51)

The compound (17) synthesized in Example 11 was used to produce theabove in the same way as in Example 19.

Example 46 Synthesis of(2S)-1-[(4-amino-2,6-dichloro)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanol(52)

The compound (17) synthesized in Example 11 and1-[4-(4-fluorophenyl)methylphenyl]piperazine synthesized in ReferenceExample 9 were used to produce the above in the same way as in Example19.

Example 47 Synthesis of1-[4-(4-phenoxyphenyl)piperidin-1-yl]-3-[(4-methoxy-2-methyl)phenylamino]-2-propanol(53)

A mixture of 91 g of the compound (21) synthesized in Example 15, 100 mgof the 4-(4-phenoxyphenyl)piperidine synthesized in Reference Example 7,and 109 mg of potassium carbonate in 4 ml of isopropyl alcohol wasstirred at 80° C. for 3 hours. The insolubles were filtered off, thenthe filtrate was concentrated under reduced pressure to give a residue.This was then purified by silica gel column chromatography (methylenechloride:methanol=30:1) to give the above-referenced compound (53) in anamount of 146 mg (yield 84%).

Example 48 Synthesis of1-[4-(4-(4-fluorophenyl)methylphenyl)piperidin-1-yl]-3-[(4-methoxy-2-methyl)phenylamino]-2-propanol(54)

The same procedure was followed as in Example 47 using4-[4-(4-fluorophenyl)methylphenyl]piperidine synthesized in ReferenceExample 8 to produce the above.

Example 49 Synthesis of1-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-3-[(4-methoxy-2-methyl)phenylamino]-2-propanol(55)

The same procedure was followed as in Example 47 using1-[4-(4-fluorophenyl)methylphenyl]piperazine synthesized in ReferenceExample 9 to produce the above.

Example 50 Synthesis of(2R)-1-[4-(4-phenoxyphenyl)piperidin-1-yl]-3-[(4-methoxy-2-methyl)phenylamino]-2-propanol(56)

The compound (22) synthesized in Example 16 was used to produce theabove in the same way as in Example 47.

Example 51 Synthesis of(2S)-1-[4-(4-phenoxyphenyl)piperidin-1-yl]-3-[(4-methoxy-2-methyl)phenylamino]-2-propanol(57)

The compound (23) synthesized in Example 17 was used to produce theabove in the same way as in Example 47.

Example 52 Synthesis of3-[(4-amino-2,3,5,6-tetramethyl)phenylamino]-1-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(58)

The compound (24) synthesized in Example 18 was used to produce theabove in the same way as in Example 19.

Example 53 Synthesis of(2S)-1-[(4-amino-2-chloro-3,5,6-trimethyl)phenoxy]-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(59)

The compound (18) synthesized in Example 12 was used to produce theabove in the same way as in Example 19.

Example 54 Synthesis of(2R)-1-[(4-amino-2,3,5-trimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanol(60)

The compound (19) synthesized in Example 13 and1-[4-(4-fluorophenyl)methylphenyl]piperazine synthesized in ReferenceExample 9 were used to produce the above in the same way as in Example19.

Example 55 Synthesis of(2R)-1-[(5-amino-2-methoxy)phenoxy]-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanol(61)

The compound (20) synthesized in Example 14 was used to produce theabove in the same way as in Example 19.

Example 56 Synthesis of(2S)-1-[(4-amino-2,3,5-trimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanoldimethanesulfonate (62)

A 10 ml isopropyl alcohol solution of 480 mg of the compound (10)synthesized in Example 3 and 432 mg of1-[4-(4-fluorophenyl)methylphenyl]piperazine was stirred at 100° C. for2 hours. To the reaction mixture, 0.65 ml of concentrated hydrochloricacid was added and, after heating at reflux for 1 hour, the mixture wasadjusted to pH=8 to 10 with 10% aqueous sodium hydroxide solution andthe corresponding free base was extracted therefrom with ethyl acetate.The solvent was removed under reduced pressure to give the residue,which was then treated with 306 mg (i.e., 2 equivalents) ofmethanesulfonic acid in a conventional manner. The resultant crudecrystal was purified by recrystallization to give the above-referencedcompound (62) in an amount of 940 mg (yield 88%).

Example 57 Synthesis of(2S)-1-[(5-amino-2-methoxy)phenoxy]-3-[4-(4-phenoxyphenyl)piperidin-1-yl]-2-propanolp-toluenesulfonate (63)

The same procedure was followed as in Example 56 using the compound (14)synthesized in Example 8 and 4-(4-phenoxyphenyl)piperidine synthesizedin Reference Example 7 to give the corresponding free base, followed bytreating with an equivalent of p-toluenesulfonic acid to produce theabove-referenced compound.

Example 58 Synthesis of(2S)-1-[(4-amino-2,3,5-trimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanoldihydrochloride (64)

The same procedure was followed as in Example 56 to give thecorresponding free base, followed by treating with 2 equivalents ofhydrochloric acid to produce the above referenced compound.

Example 59 Synthesis of(2S)-1-[(4-Amino-2,3,5-trimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanol1/2sulfonate (65)

The above compound was synthesized by treating the corresponding freebase with 1/2 equivalent of sulfuric acid in the same way as in Example56.

Example 60 Synthesis of(2S)-1-[(4-Amino-2,3,5-trimethyl)phenoxy]-3-[4-(4-(4-fluorophenyl)methylphenyl)piperazin-1-yl]-2-propanolsulfonate (66)

The above compound was synthesized by treating the corresponding freebase with an equivalent of sulfuric acid in the same way as in Example56.

The physical data of the compounds obtained in the Reference Examplesand Examples are shown in Table 1.

TABLE 1 Com- pound no. Chemical structure Properties IR (CHCl₃) ¹H-NMR(CDCl₃)  1

Colorless oily substance 3020, 2402, 1676, 1499, 1430, 1368, 1249, 1168,1089, 1029,  931, 832 1.41(s, 9H), 1.68(2H, m), 1.97(2H, m), 3.19(2H,m), 3.95(2H, m), 6.85-7.05(4H, m), 6.87(2H, d), 7.35(2H, d)  2

Colorless oily substance 2946, 2817, 1706, 1483, 1406, 1367, 1345, 11191.76(2H, m), 2.18(2H, m), 2.48(2H, m), 2.79-2.83(2H, m), 3.60(2H, s),7.29-7.45(11H, m), 7.54(2H, d)  3

Pale yellow oily substance 3011, 2971, 1682, 1609, 1509, 1478, 1430,1367, 1279, 1269, 1086, 1030,  986 1.48(s, 9H), 1.58-1.66(2H, m),1.72-1.99(10H, m), 3.25(2H, m), 3.97(2H, m), 4.75(1H, m), 6.85(2H, d),7.35(2H, d)  4

Colorless crystal 2926, 1498, 1249, 1206, 1194, 1100, 1012, 816 2.37(2H,m), 3.04(2H, t), 3.46(2H, m), 6.01(1H, m), 6.84(2H, d), 6.86-6.98(4H,m), 7.26(2H, d)  5

Yellow crystal 2963, 1606, 1509, 1438, 1358, 1317, 1274, 1177, 1114,1090,  988 1.56-1.66(2H, m), 1.75-1.94(6H, m), 2.40-2.44(2H, m),3.09(2H, t), 3.51(2H, m), 4.74(1H, m), 6.02(1H, m), 6.82(2H, d),7.29(2H, d)  6

Colorless oily substance 2937, 1606, 1498, 1450, 1318, 1252, 1168, 1091,1013, 832 1.56(2H, td), 1.77(2H, m), 2.53(H, tt), 2.68(2H, td), 3.12(2H,m), 6.83(2H, m), 6.86-6.97(4H, m), 7.10(2H, d)  7

Pale yellow crystal 2940, 1610, 1509, 1445, 1364, 1318, 1177, 1136,1101, 1051,  989 1.55-1.64(4H, m), 1.77-1.89(8H, m), 2.54(1H, m),2.72(2H, dt), 3.17(2H, m), 4.72(1H, m), 6.81(2H, d), 7.10(2H, d)  8

Colorless crystal 3589, 2950, 1484, 1406, 1320, 1270, 1134, 10101.75-1.78(2H, m), 2.01-2.08(2H, m), 2.99-3.02(2H, m), 3.10-3.16 (2H, m),7.31-7.38(3H, m), 7.42-7.46(3H, m), 7.54-7.56(2H, m)  9

Colorless crystal [α]_(D) + 2° (c = 1.4, CHCl₃) 3439, 3018, 2981, 1720,1596, 1518, 1457, 1412, 1368, 1157, 1041, 918 1.44(9H, s), 2.67(1H, dd),2.81(1H, dd), 3.26(1H, m), 3.87(1H, dd), 4.09(1H, dd), 6.24(1H, brs),6.80(2H, d), 7.19(2H, d) 10

Colorless crystal [α]_(D) + 3.1° (c = 1.1, CHCl₃) 3431, 2980, 2400,1718, 1491, 1368, 1322, 1163, 1121, 1049,  929, 845 1.54(9H, s),2.18(3H, s), 2.20(3H, s), 2.25(3H, s), 2.78(1H, dd), 2.90(1H, dd),3.37(1H, m), 3.98(1H, dd), 4.18(1H, dd), 5.79(1H, brs), 6.59(1H, d) 11

Light brown crystal [α]_(D) + 2.52° (c = 1.19, CHCl₃) 3019, 1720, 1522,1485, 1456, 1409, 1393, 1368, 1313, 1159, 1116 1.50(9H, s), 2.20(6H, s),2.75(1H, m), 2.88(1H, m), 3.33(1H, m), 3.94(1H, dd), 4.15(1H, dd),6.01(1H, brs), 6.62(1H, s), 7.39(1H, s) 12

Light brown crystal [α]_(D) + 5.14° (c = 1.05, CHCl₃) 3019, 1719, 1603,1491, 1458, 1420, 1393, 1368, 1159, 1090 1.50(9H, s), 2.16(3H, s),2.19(3H, s), 2.75(1H, dd), 2.88(1H, dd), 3.32-3.36(1H, m), 3.94(1H, dd),4.18(1H, dd), 6.05(1H, brs), 6.69(1H, d), 7.27(1H, d) 13

Colorless foamy substance [α]_(D) + 0.98° (c = 0.82, CHCl₃) 3436, 2981,2401, 1719, 1508, 1452, 1393, 1368, 1159, 1091, 1008, 914,  837 1.53(9H,s), 2.14(3H, s), 2.24(3H, s), 2.29(3H, s), 2.75(1H, dd), 2.89(1H, dd),3.37(1H, m), 3.71(1H, dd), 3.96(1H, dd), 6.12(1H, brs), 7.28(1H, s) 14

Pale yellow crystal [α]_(D) − 3.24° (c = 1.05, CHCl₃) 3018, 1720, 1603,1518, 1464, 1442, 1426, 1406, 1394, 1368, 1318, 1292, 1159, 10271.51(9H, s), 2.75(1H, dd), 2.88(1H, dd), 3.38(1H, m), 3.83(3H, s),4.05(1H, dd), 4.24(1H, dd), 6.32(1H, brs), 6.79(2H, s), 7.17(1H, s) 15

Brown oily substance [α]_(D) + 13.7° (c = 1.21, CHCl₃) 3020, 1719, 1609,1522, 1448, 1393, 1368, 1285, 1159, 1105, 1008 1.53(9H, s), 2.24(3H, s),2.26(3H, s), 2.86(1H, dd), 2.91(1H, dd), 3.31(1H, m), 3.89(1H, dd),4.01(1H, dd), 6.61(1H, s), 7.40(1H, brs), 7.75(1H, s) 16

Colorless crystal [α]_(D) = +0.88° (c = 0.9, CHCl₃) 3425, 3019, 2982,1721, 1594, 1522, 1485, 1464, 1442, 1410, 1369, 1326, 1237, 10751.56(9H, s), 2.80(1H, dd), 2.92(1H, dd), 3.42(1H, m), 3.84(3H, s),4.09(1H, dd), 4.27(1H, dd), 6.80(1H, s), 6.87(1H, s), 7.84(1H, s) 17

Colorless crystal [α]_(D) − 1.1° (c = 1.1, CHCl₃) 3018, 1721, 1601,1486, 1456, 1393, 1368, 1342, 1302, 1161, 1118, 1090, 1048 1.53(9H, s),2.72(1H, dd), 2.89(1H, dd), 3.45(1H, m), 4.05(1H, dd), 4.16(1H, dd),6.42(1H, brs), 7.39(2H, s) 18

Colorless crystal [α]_(D) − 0.78° (c = 1.02, CHCl₃) 3019, 1721, 1484,1456, 1393, 1368, 1321, 1161, 1117, 1094, 1045, 1015 1.55(9Hs, ),2.16(3H, s), 2.24(3H, s), 2.30(3H, s), 2.72(1H, dd), 2.88(1H, m),3.40(1H, m), 3.82(1H, dd), 4.10(1H, dd), 7.26(1H, brs) 19

Colorless crystal [α]_(D) − 3.1° (c = 1.03, CHCl₃) 3431, 2980, 2400,1718, 1491, 1368, 1322, 1163, 1121, 1049,  929, 845 1.54(9H, s),2.18(3H, s), 2.20(3H, s), 2.25(3H, s), 2.78(1H, dd), 2.90(1H, dd),3.37(1H, m), 3.98(1H, dd), 4.18(1H, dd), 6.79(1H, brs), # 6.59(1H, d) 20

Pale yellow crystal [α]_(D) + 3.24° (c = 1.32, CHCl₃) 3018, 1720, 1603,1518, 1464, 1442, 1426, 1406, 1394, 1368, 1318, 1292, 1159, 10271.51(9H, s), 2.75(1H, dd), 2.88(1H, dd), 3.38(1H, m), 3.83(3H, s),4.05(1H, dd), 4.24(1H, dd), 6.32(1H, brs), 6.79(2H, s), 7.17(1H, s) 21

Light brown oily substance 3019, 1509, 1466, 1444, 1420, 1380, 1289,1162, 1082, 1050 2.17(3H, s), 2.48(1H, m), 3.22(1H, dd), 3.37(1H, dd),3.63-3.73(2H, m), 3.74(3H, s), 4.09-4.10(1H, m), 6.60(1H, d),6.68-6.71(2H, m) 22

Light brown crystal [α]_(D) + 5.59° (c = 1.11, MeOH) 3016, 1510, 1465,1421, 1380, 1289, 1162, 1081, 1050 2.17(3H, s), 2.50(1H, m), 3.22(1H,dd), 3.37(1H, dd), 3.63-3.73(2H, m), 3.74(3H, s), 4.10(1H, m), 6.60(1H,d), 6.68-6.71(2H, m) 23

Brown crystal [α]_(D) − 5.59° (c = 1.04, MeOH) 3017, 1510, 1465, 1420,1380, 1289, 1162, 1081, 1050 2.16(3H, s), 2.50(1H, m), 3.22(1H, dd),3.37(1H, dd), 3.63-3.73(2H, m), 3.74(3H, s), 4.10(1H, m), 6.60(1H, d),6.68-6.71(2H, m) 24

Colorless crystal 3431, 3019, 2981, 1719, 1485, 1392, 1368, 1163, 1047,1021 1.56(3H, s), 2.23(6H, s), 2.28(6H, s), 2.78(1H, brs), 3.01(1H, dd),3.05(1H, dd), 3.65-3.75(2H, m), 4.05(1H, m), 5.91(1H, brs) PropertiesCom- Melting point pound (recrystalli- MS or elementary no. Chemicalstructure zation solvent) IR (KBr) ¹H-NMR (d₆-DMSO) analysis 25

Colorless crystal >235° C. (decomposition) (methanol/ether) [α]_(D) −9.58° (c = 0.48, MeOH) 3356, 2858, 2574, 1988, 1611, 1590, 1490, 1305,1256, 1170, 1135, 1071,  981, 827 1.90-2.20(4H, m), 2.85(1H, m),3.15-3.40(4H, m), 3.68(2H, m), 3.98(2H, m), 4.39(1H, # m), 6.98(6H, m),7.14(3H, m), 7.25(2H, d), 7.39(2H, m) MS (FAB/free base) m/z: 419 (M +H⁺) 26

Colorless crystal >225° C. (decomposition) (2-propanol/ether) [α]_(D) −26.8° (c = 0.4, MeOH) 3142, 2932, 2604, 1676, 1590, 1420, 1327, 1234,1130, 1023,  979, 870 1.95-2.18(4H, m), 2.14(3H, s), 2.23(3H, s),2.32(3H, s), 2.84(1H, m), 3.15-3.35(4H, m), 3.68(2H, m), # 3.97(2H, m),4.43(1H, m), 6.79(1H, s), 6.99(4H, d), 7.14(1H, t), 7.27(2H, d),7.39(2H, t) C₂₉H₃₃Cl₂N₂O₃.2¾H₂O (dihydrochloride)     C   H   N Calcd: 59.74 6.57 4.80 Found: 59.76 6.79 4.78 27

Colorless crystal 227-230° C. (methanol/ether) [α]_(D) − 9.35° (c =1.07, MeOH) 2928, 1630, 1589, 1508, 1488, 1469, 1416, 1393, 1330, 1286,1217, 1158, 1128, 1099 1.91-2.11(4H, m), 2.13(3H, s), 2.24(3H, s),2.34(3H, s), 2.76-2.82(1H, m), 3.12-3.41(4H, m), 3.66 # (2H, m),3.90(2H, s), 3.92-4.00(2H, m), 4.44(1H, m), 6.80(1H, s), 7.09(2H, m),7.18(4H, m), 7.23-7.27(2H, m) MS (FAB/free base) m/z: 477 (M + H⁺) 28

Colorless crystal 197-198° C. (methanol/ether) [α]_(D) − 8.36° (c =0.67, MeOH) 3384, 2928, 1627, 1600, 1508, 1460, 1327, 1287, 1219, 1127,1017, 982,  824, 769 2.14(3H, s), 2.27(3H, s), 2.37(3H, s),3.15-3.80(10H, m), 3.97(2H, m), 4.46(1H, m), 6.83(1H, s), 6.94 # (2H,d), 7.10(4H, m), 7.23(2H, dd) C₂₉H₃₀Cl₃FN₂O₂.½H₂O (trihydrochloride)    C   H   N Calcd:  58.44 6.60 7.05 Found: 58.36 6.50 7.02 PropertiesCom- Melting point pound (recrystalli- no. Chemical structure zationsolvent) IR (KBr) ¹H-NMR (d₆-DMSO) Elementary analysis 29

Colorless crystal 260-263° C. (2-propanol/ether) [α]_(D) − 8.08° (c =1.04, MeOH) 2928, 1500, 1499, 1418, 1327, 1287, 1249, 1214, 1193, 1171,1127, 1092 1.98-2.09(4H, m), 2.14(3H, s), 2.24(3H, s), 2.35(3H, s),2.83(1H, m), 3.19-3.34(4H, m), 3.67(2H, m), 3.94-3.99(2H, # m), 4.44(1H,m), 6.80(1H, s), 6.97(2H, d), 7.03-7.06(2H, m), 7.19-7.27(4H, m)C₂₉H₃₇Cl₂FN₂O₃.¾H₂O (dihydrochloride)     C   H   N Calcd:  61.65 6.604.96 Found: 61.70 6.79 4.77 30

Colorless crystal 242-244° C. (methanol/ether) [α]_(D) − 8.47° (c =1.11, MeOH) 2936, 2871, 1626, 1590, 1518, 1485, 1467, 1407, 1327, 1284,1268, 1235, 1215, 1133 1.87(2H, m), 2.15(3H, s), 2.25(3H, s), 2.35(3H,s), 2.46-2.55(2H, m), 3.24-3.45(4H, m), 3.57(2H, # m), 3.97(2H, m),4.47(1H, m), 6.80(1H, s), 7.37-7.42(3H, m), 7.48(2H, m), 7.54(3H, m)C₂₉H₃₇Cl₂FN₂O₃.¼H₂O (dihydrochloride)     C   H   N Calcd:  62.65 6.715.04 Found: 62.73 6.70 5.04 31

Colorless crystal 225-228° C. (2-propanol/ether) [α]_(D) − 9.74° (c =1.17, MeOH) 2957, 2870, 1612, 1590, 1512, 1489, 1460, 1418, 1327, 1286,1244, 1180, 1128, 979 1.57-1.70(6H, m), 1.87-2.09(6H, m), 2.14(3H, s),2.24(3H, s), 2.34(3H, s), 2.75(1H, m), 3.12- # 3.34(4H, m), 3.66(2H, m),3.91-4.00(2H, m), 4.44(1H, m), 4.76(1H, m), 6.79(1H, m), 6.85(2H, d),7.13(2H, d) C₂₅H₄₂Cl₂N₂O₃.1¼H₂O (dihydrochloride)     C   H   N Calcd: 61.36 7.72 5.11 Found: 61.34 7.82 5.14 32

Colorless crystal 239-242° C. (methanol/ether) [α]_(D) − 9.67° (c =1.22, MeOH) 2928, 2602, 1634, 1590, 1510, 1490, 1468, 1409, 1286, 1240,1209, 1171, 1103 2.00-2.13(4H, m), 2.17(3H, s), 2.28(3H, s), 2.84(1H,m), 3.16-3.30(4H, m), 3.66-3.67(2H, m), 3.94-4.03 # (2H, m), 4.41(1H,m), 6.91(1H, s), 6.99(4H, d), 7.13(2H, m), 7.27(2H, d), 7.38(2H, t)C₂₆H₃₆Cl₂N₂O₃.¼H₂O (dihydrochloride)     C   H   N Calcd:  64.18 6.925.35 Found: 64.02 6.98 5.42 33

Colorless crystal 209-212° C. (ethanol/ether) [α]_(D) − 11.9° (c = 1.08,MeOH) 2926, 2596, 1633, 1602, 1508, 1460, 1412, 1286, 1209, 1158, 11021.91-2.09(4H, m), 2.15(3H, s), 2.24(3H, s), 2.80(1H, m), 3.20-3.29(4H,m), 3.65(2H, m), 3.90(2H, s), 3.90-3.97(2H, # m), 4.38(1H, m), 6.86(1H,s), 7.01-7.27(9H, m) C₂₉H₃₇Cl₂FN₂O₃ (dihydrochloride)     C   H   NCalcd:  65.04 6.94 5.23 Found: 64.76 6.89 5.20 34

Colorless crystal 213-215° C. (methanol/ether) [α]_(D) − 7.86° (c =1.17, MeOH) 2600, 1603, 1514, 1460, 1408, 1285, 1209, 1158, 1103, 10222.17(3H, s), 2.33(3H, s), 3.14-3.31(5H, m), 3.38-3.41(1H, m),3.60-3.77(4H, m), 3.84(2H, s), 3.95-4.04(2H, m), 4.47(1H, m), 6.93 #(3H, m), 7.06-7.12(4H, m), 7.22(3H, m) C₂₈H₃₇Cl₃FN₃O₂ (trihydrochloride)    C   H   N Calcd:  58.70 6.51 7.33 Found: 58.84 6.45 7.39 35

Colorless crystal 242-245° C. (methanol/ether) [α]_(D) − 9.49° (c =1.37, MeOH) 2928, 2599, 1590, 1508, 1490, 1312, 1272, 1242, 1212, 1170,1112, 1073 1.99-2.13(4H, m), 2.18(3H, s), 2.22(3H, s), 2.84(1H, m),3.15-3.32(4H, m), 3.68(2H, m), 3.96-4.01(2H, m), 4.46(1H, # m), 6.91(1H,d), 6.99(4H, m), 7.13(1H, dd), 7.27(3H, m), 7.38(2H, m)C₂₈H₃₆N₂O₃Cl₂.¼H₂O (dihydrochloride)     C   H   N Calcd:  64.18 6.925.35 Found: 64.05 6.87 5.34 36

Colorless crystal 237-240° C. (methanol/ether) [α]_(D) − 21.0° (c =1.05, MeOH) 3294, 2605, 1601, 1508, 1480, 1460, 1432, 1315, 1274, 1220,1213, 1159, 1138, 1113 1.91-2.14(4H, m), 2.18(3H, s), 2.22(3H, m),2.79(1H, m), 3.10-3.32(4H, m), 3.66(2H, m), 3.90(2H, s), # 3.93-4.01(2H,m), 4.45(1H, m), 6.90(1H, d), 7.09(2H, t), 7.18(4H, m), 7.23-7.27(3H, m)C₂₅H₃₇Cl₂FN₂O₂.¼H₂O (dihydrochloride)     C   H   N Calcd:  64.50 6.915.19 Found: 64.64 6.93 5.19 Properties Com- Melting point pound(recrystalli- MS or elementary no. Chemical structure zation solvent) IR(KBr) ¹H-NMR (d₆-DMSO) analysis 37

Colorless crystal 232-234° C. (methanol/ether) [α]_(D) − 9.15° (c =1.18, MeOH) 3294, 2844, 2604, 1612, 1601, 1506, 1486, 1456, 1273, 1259,1212, 1159, 1139, 1116,  977, 920 2.18(3H, s), 2.22(3H, s),3.17-3.34(6H, m), 3.66-3.74(4H, m), 3.84(2H, s), 3.93-4.01 # (2H, m),4.45(1H, m), 6.92(3H, m), 7.06-7.12(4H, m), 7.21-7.28(3H, m) MS(Fab/free base) m/z: 464 (M + H⁺) 38

Colorless crystal 229-231° C. (methanol/ether) [α]_(D) − 11.08° (c =0.83, MeOH) 3334, 2926, 2656, 1589, 1509, 1490, 1229, 1172, 1101, 871, 840 1.92-2.20(4H, m), 2.18(3H, s), 2.22(3H, s), 2.25(3H, s), 2.84(1H,m), 3.20(2H, m), 3.40(2H, m), 3.72(4H, m), 4.46(1H, m), # 7.00(4H, d),7.11(1H, s), 7.14(1H, t), 7.27(2H, d), 7.39(2H, t) C₂₉H₃₈Cl₂N₂O₃(dihydrochloride)     C   H   N Calcd:  65.29 7.18 5.25 Found: 65.187.16 5.24 39

Colorless crystal 258-260° C. (methanol/ether) [α]_(D) − 10.4° (c =1.10, MeOH) 2928, 2886, 1587, 1498, 1310, 1249, 1216, 1193, 1171, 1137,1094, 1058, 1013, 977 1.95-2.13(4H, m), 2.18(3H, s), 2.21(3H, s),2.24(3H, s), 2.83(1H, m),3.15-3.33(4H, m), 3.68-3.73(4H, # m), 4.44(1H,m), 6.97(2H, d), 7.03-7.06(2H, m), 7.09(1H, s), 7.20-7.27(4H, m)C₂₉H₃₇Cl₂FN₂O₃ (dihydrochloride)     C   H   N Calcd:  63.16 6.76 5.08Found: 63.48 6.68 4.97 40

Colorless crystal 237-240° C. (methanol/ether) [α]_(D) − 9.19° (c =1.11, MeOH) 2926, 2598, 1602, 1511, 1483, 1456, 1414, 1310, 1225, 1158,1095, 1017,  984, 928 2.19(3H, s), 2.21(3H, s), 2.25(3H, s),3.14-3.37(5H, m), 3.48(1H, m), 3.64-3.78(6H, m), 3.85(2H, s), # 4.67(1H,m), 6.94(2H, d), 7.06-7.16(5H, m), 7.22(2H, m) C₂₉H₃₉Cl₂FN₃O₂(trihydrochloride)     C   H   N Calcd:  59.34 6.79 7.16 Found: 59.506.65 7.15 41

Colorless crystal 90-92° C. (ether/methylene chloride) [α]_(D) − 8.24°(c = 1.19, MeOH) 3384, 2936, 2599, 1590, 1520, 1471, 1447, 1349, 1236,1167, 1021, 975,  870, 749 1.90-2.20(4H, m), 2.84(1H, m), 3.15-3.45(4H,m), 3.68(2H, m), 3.79(3H, s), 3.98(2H, # m), 4.44(1H, m), 6.87(1H, d),6.95-7.05(6H, m), 7.14(1H, t), 7.27(2H, d), 7.39(2H, t) MS (FAB/freebase) m/z: 449 (M + H⁺) 42

Colorless crystal 155-156° C. (ether/methylene chloride) [α]_(D) − 8° (c= 1.1, MeOH) 3410, 2942, 1672, 1609, 1504, 1349, 1216, 1091, 1023, 976, 876, 834,  752, 721 1.95-2.20(4H, m), 2.85(1H, m), 3.10-3.45(4H, m),3.78(2H, m), 3.79(3H, s), 3.97(2H, # m), 4.45(1H, m), 6.91(1H, d),6.97(2H, d), 7.04(4H, m), 7.23(4H, m) MS (FAB/free base) m/z: 467 (M +H⁺) 43

Colorless crystal 182-185° C. (acetonitrile/ ethanol/ether) [α]_(D) −6.67° (c = 1.20, MeOH) 2932, 2604, 1604, 1574, 1514, 1464, 1447, 1348,1272, 1236, 1158, 1139, 1094, 1021,  978 1.91-2.13(4H, m), 2.80(1H, m),3.11-3.26(4H, m), 3.65(2H, m), 3.79(2H, # s), 3.90(3H, s), 3.93-4.02(2H,m), 4.44(1H, m), 6.93(1H, d), 7.04-7.11(5H, m), 7.17(3H, m), 7.24(2H, m)MS (FAB/free base) m/z: 465 (M + H⁺) 44

Colorless crystal 196-198° C. (methanol/ether) [α]_(D) − 7.88° (c =1.04, MeOH) 2942, 2574, 1608, 1578, 1510, 1447, 1349, 1271, 1234, 1159,1137, 1193, 1020 3.13-3.32(4H, m), 3.40(2H, m), 3.62-3.78(4H, m),3.80(3H, s), 3.85(2H, s), 3.94-4.02(2H, m), 4.47(1H, m), # 6.93(2H, d),6.99(1H, dd), 7.06-7.12(6H, m), 7.22(2H, m) C₂₇H₃₅Cl₃FN₃O₃.½H₂O(trihydrochloride)     C   H   N Calcd:  55.54 6.04 7.20 Found: 55.556.01 7.21 45

Colorless crystal 184-187° C. (2-propanol/ether) [α]_(D) − 9.14° (c =1.16, MeOH) 2950, 2598, 1612, 1579, 1514, 1447, 1354, 1268, 1244, 1168,1136, 1023,  978 1.54-1.60(2H, m), 1.69-1.70(4H, m), 1.86-2.12(6H, m),2.76(1H, m), 3.11-3.39(4H, m), 3.65(2H, m), # 3.79(3H, s), 3.93-4.02(2H,m), 4.45(1H, m), 4.77(1H, m), 6.85(2H, d), 6.93(1H, dd), 7.05(2H, m),7.13(2H, d) MS (FAB/free base) mz/: 441 (M + H⁺) 46

Colorless crystal 227-228° C. (methanol/ether) [α]_(D) + 1.2° (c = 0.68,MeOH) 3287, 2743, 1589, 1508, 1489, 1452, 1316, 1244, 1173, 1148, 1092,996,  866, 699 1.95-2.21(4H, m), 2.22(3H, s), 2.25(3H, s), 2.87(1H, m),3.21(2H, m), 3.32(2H, m), 3.70(2H, m), 3.92(2H, # m), 4.47(1H, m),6.87(2H, m), 7.00(4H, d), 7.14(1H, t), 7.28(2H, d), 7.39(2H, t)C₂₈H₃₈Cl₂N₂O₃ (dihydrochloride)     C   H   N Calcd:  64.74 6.98 5.39Found: 64.47 6.94 5.36 47

Colorless crystal 221-223° C. (2-propanol/ether) [α]_(D) − 0.6° (c =1.03, MeOH) 1600, 1508, 1492, 1453, 1417, 1316, 1222, 1158, 1094, 1020, 970 1.95(2H, m), 2.03-2.16(2H, m), 2.22(3H, s), 2.24(3H, s), 2.81(1H,m), 3.13-3.21(2H, m), 3.26-3.46(2H, m), 3.67-3.70 # (2H, m), 3.91(4H,m), 4.45(1H, m), 6.84-6.89(2H, m), 7.10(2H, t), 7.18(4H, m),7.23-7.27(2H, m) C₂₉H₃₇Cl₂FN₂O₂.¼H₂O (dihydrochloride)     C   H   NCalcd:  64.50 6.91 5.19 Found: 64.59 6.87 5.25 48

Colorless crystal 220-221° C. (methanol/ether) [α]_(D) + 2.77° (c =1.01, MeOH) 2852, 2584, 1602, 1508, 1499, 1460, 1415, 1316, 1223, 1157,1093, 1016 2.24(3H, m), 2.27(3H, m), 3.34-3.69(10H, m), 3.84(2H, s),3.92-4.00(2H, m), 4.49(1H, m), 6.94(2H, d), 7.01(2H, # m), 7.05-7.13(4H,m), 7.20-7.24(2H, m) C₂₈H₃₇Cl₃FN₂O₂ (trihydrochloride)     C   H   NCalcd:  58.70 6.51 7.33 Found: 58.84 6.71 7.30 49

Colorless crystal 87-88° C. (ether/methylene chloride) [α]_(D) − 25.1°(c = 0.35, MeOH) 3344, 2933, 1676, 1590, 1508, 1490, 1443, 1240, 1201,1180, 1136, 870,  834, 693 1.85-2.20(4H, m), 2.84(1H, m), 3.10-3.38(4H,m), 3.68(2H, m), 3.72(3H, s), 3.94(2H, # m), 4.42(1H, m), 6.76(1H, s),6.94(1H, s), 6.99(4H, d), 7.14(1H, t), 7.26(2H, d), 7.39(2H, t) MS(FAB/free base) m/z: 483 (M + H⁺) 50

Colorless crystal 170-173° C. (ethanol/ether) [α]_(D) − 6.42° (c = 1.09,MeOH) 2844, 2584, 1611, 1514, 1442, 1403, 1357, 1271, 1221, 1180, 1158,1136, 1092 3.11-3.41(6H, m), 3.61-3.80(4H, m), 3.75(3H, s), 3.84(2H, s),3.89-3.97(2H, m), 4.43(1H, m), 6.93(2H, d), # 7.01-7.12(6H, m),7.20-7.24(2H, m) C₂₇H₃₄Cl₄FN₃O₃ (trihydrochloride)     C   H   N Calcd: 53.22 5.62 6.90 Found: 53.49 5.54 6.97 51

Colorless crystal 196-198° C. (2-propanol/ether) [α]_(D) − 12.4° (c =0.5, MeOH) 3328, 2936, 2595, 1589, 1508, 1489, 1479, 1420, 1240, 1170,1014, 977,  870, 812,  751, 693 1.85-2.20(4H, m), 2.85(1H, m), 3.25(2H,m), 3.47(2H, m), 3.74(2H, m), 3.89(2H, # m), 4.41(1H, m), 6.68(2H, m),6.99(4H, m), 7.14(1H, t), 7.27(2H, d), 7.39(2H, t) C₂₆H₃₀Cl₄N₂O₃(dihydrochloride)     C   H   N Calcd:  54.85 5.31 4.92 Found: 54.965.26 4.94 52

Colorless crystal 120-123° C. (ethanol/ether) [α]_(D) − 22.8° (c = 1.06,MeOH) 2840, 2584, 1614, 1603, 1508, 1477, 1456, 1400, 1281, 1251, 1217,1158, 1138, 1292,  918, 813 3.10-3.35(6H, m), 33.45-3.50(2H, m),3.61-3.81(4H, m), 3.84(2H, s), 3.86-3.90 # (2H, m), 6.75(2H, s),6.93(2H, m), 7.10(4H, m), 7.22(2H, m) MS (FAB/free base) m/z: 504 (M +H⁺) Properties Com- Melting point pound (recrystalli- MS or elementaryno. Chemical structure zation solvent) IR (KBr) ¹H-NMR (CDCl₃) analysis53

Colorless crystal (dihydrochloride) 197-199° C. (methanol/ether)(dihydrochloride) 2952, 1590, 1510, 1491, 1294, 1267, 1244, 1202, 1170,1136, 1108, 1073, 1049, 955 1.70-1.88(4H, m), 2.10(1H, m), 2.18(3H, s),2.39-2.59(4H, m), 2.96(1H, m), 3.05(1H, m), 3.14(1H, m),3.25(1H, m),3.74 # (3H, s), 4.00-4.05(1H, m), 6.57(1H, m), 6.68-6.70(2H, m),6.97(4H, m), 7.08(1H, t), 7.18(2H, d), 7.32(2H, m) C₂₈H₃₆Cl₂N₂O₃.¾H₂O(dihydrochloride)     C   H   N Calcd:  64.55 6.96 5.38 Found: 64.546.93 5.34 54

Colorless crystal (dihydrochloride) 181-183° C. (ethanol/ether)(dihydrochloride) 2956, 1602, 1513, 1504, 1456, 1295, 1268, 1222, 1204,1158, 1137, 1095, 1049, 1017 1.59-1.76(4H, m), 2.02(1H, m), 2.10(3H, s),2.31-2.51(4H, m), 2.88(1H, m), 2.95-3.00(1H, m), 3.06(1H, m), 3.18(1H, #dd), 3.67(3H, s), 3.85(2H, s), 3.92-3.96(1H, m), 6.49(1H, d),6.61-6.63(2H, m), 6.89(2H, dt), 7.01-7.08(6H, m) C₂₉H₃₇Cl₂FN₂O₂.¼H₂O(dihydrochloride)     C   H   N Calcd:  64.50 6.91 5.19 Found: 64.656.91 5.24 55

Colorless crystal (trihydrochloride) 183-185° C. (ethanol/ether)(trichydrochloride) 2957, 2940, 1613, 1510, 1456, 1444, 1295, 1268,1221, 1158, 1136, 1093, 1048, 966 2.17(3H, s), 2.47(1H, m),2.57-2.63(3H, m), 2.80-2.85(2H, m), 3.04-3.08(1H, m), 3.16-3.20 (4H, m),3.26(1H, m), # 3.74(3H, s), 3.87(2H, s), 4.00-4.06(1H, m), 6.57(1H, d),6.68-6.70(2H, m), 6.85(2H, d), 6.94(2H, t), 7.05(2H, d), 7.10-7.13(2H,m) C₂₈H₃₇Cl₃FN₃O₂ (trihydrochloride)     C   H   N Calcd:  58.70 6.517.33 Found: 58.52 6.62 7.29 56

Colorless crystal (dihydrochloride) 191-194° C. (methanol/ether)[α]_(D) + 19.5° (c = 1.14, MeOH) (dihydrochloride) 2953, 1590, 1511,1504, 1489, 1294, 1267, 1245, 1203, 1170, 1137, 1110, 1072, 1049,  9511.69-1.88(4H, m), 2.10(1H, m), 2.18(3H, s), # 2.40-2.60(4H, m), 2.96(1H,m), 2.55(1H, m), 3.14(1H, m), 3.26(1H, m), 3.75(3H, s), 4.01-4.05(1H,m), 6.57(1H, d), 6.68-6.71(2H, m), 6.98(4H, m), 7.08(1H, t), 7.18(2H,m), 7.33(2H, m) C₂₅H₃₆Cl₂N₂O₃.¼H₂O (dihydrochloride)     C   H   NCalcd:  64.18 6.92 5.35 Found: 64.28 7.01 5.32 57

Colorless crystal (dihydrochloride) 188-191° C. (methanol/ether) [α]_(D)− 19.5° (c = 1.12, MeOH) (dihydrochloride) 2953, 1590, 1510, 1493, 1456,1294, 1268, 1246, 1203, 1170, 1137, 1101, 1072, 1048,  952 1.66-1.88(4H,m), 2.10(1H, m), 2.18(3H, s), # 2.39-2.59(4H, m), 2.96(1H, m), 3.05(1H,m), 3.14(1H, m), 3.25(1H, m), 3.74(3H, s), 3.99-4.05(1H, m), 6.57(1H,d), 6.68-6.71(2H, m), 6.97(4H, m), 7.08(1H, t), 7.18(2H, m), 7.32(2H, m)C₂₈H₃₈Cl₂N₂O₃.¼H₂O (dihydrochloride)     C   H   N Calcd:  64.18 6.925.35 Found: 64.24 6.91 5.38 Properties Com- Melting point pound(recrystalli- no. Chemical structure zation solvent) IR (KBr) ¹H-NMR(d₆-DMSO) Elementary analysis 58

Colorless crystal 221-223° C. (methanol/ether) 3372, 2948, 1588, 1532,1508, 1490, 1240, 1172, 1071, 951,  868, 748 1.95-2.20(4H, m), 2.17(6H,s), 2.22(1H, m), 2.28(6H, s), 2.86(1H, m), 2.96(1H, m), 3.10-3.50(6H,m), 4.48(1H, m), 6.99(4H, d), 7.14(1H, t), 7.27(2H, d), 7.39(2H, # t)C₃₀H₄₂Cl₃N₂O₂.¼H₂O (trihydrochloride)     C   H   N Calcd:  61.33 7.217.15 Found: 61.33 7.09 7.16 59

Colorless crystal 228-230° C. (methanol/ether) [α]_(D) − 10.7° (c =1.08, MeOH) 2940, 1590, 1508, 1490, 1456, 1415, 1322, 1240, 1171, 1105,1073, 1042,  977 1.95-2.11(4H, m), 2.16(3H, s), 2.22(3H, s), 2.30(3H,s), 2.83(1H, m), 3.14-3.45(4H, m), 3.67-3.80(4H, m), # 4.44-4.46(1H, m),6.99(4H, m), 7.14(1H, t), 7.27(2H, d), 7.39(2H, t) C₂₉H₃₇Cl₃N₂O₃.¼H₂O(dihydrochloride)     C   H   N Calcd:  60.84 6.51 4.89 Found: 60.796.48 4.91 60

Colorless crystal 197-198° C. (methanol/ether) [α]_(D) + 8.36° (c =1.33, MeOH) 3384, 2928, 1627, 1600, 1508, 1460, 1327, 1287, 1219, 1127,1017, 982,  824, 769 2.14(3H, s), 2.27(3H, s) 2.37(3H, s),3.15-3.80(10H, m), 3.97(2H, m), 4.46(1H, m), 6.83(1H, s), 6.94 # (2H,d), 7.10(4H, m), 7.23(2H, dd)   — 61

Colorless crystal 90-92° C. (ether/methylene chloride) [α]_(D) + 8.24°(c = 1.09, MeOH) 3384, 2936, 2599, 1590, 1520, 1471, 1447, 1349, 1236,1167, 1021, 975,  870, 749 1.90-2.20(4H, m), 2.84(1H, m), 3.15-3.45(4H,m), 3.68(2H, m), 3.79(3H, s), 3.98(2H, # m), 4.44(1H, m), 6.87(1H, d),6.95-7.05(6H, m), 7.14(1H, t), 7.27(2H, d), 7.39(2H, t)   — PropertiesCom- Melting point pound (recrystalli- MS or Elementary no. Chemicalstructure zation solvent) IR (KBr) ¹H-NMR (d₆-DMSO) analysis 62

Colorless crystal 213-214° C. (2-propanol:water = 20:1) [α]_(D) − 7.8°(C = 1.3, MeOH) 3307, 2913, 2620, 1614, 1564, 1506, 1460, 1327, 1214,1160, 1042, 973,  808, 780, 2.14(3H, s), 2.20(3H, s), 2.30(3H, s),2.32(6H, s), 3.03-3.15(4H, m), 3.62(4H, # m), 3.73(2H, m), 3.77(2H, s),3.90-3.98(2H, m), 4.35(1H, m), 5.96(1H, brs), 6.79(1H, s), 6.94(2H, d),7.07-7.14(4H, m), 7.23(2H, m) C₃₁H₄₄N₃O₈F₁S₂ (dimethanesulfonate)     C  H   N Calcd:  55.59 6.62 6.27 Found: 55.13 6.56 6.22 63

Colorless crystal 156-157° C. (methanol/ether) [α]_(D) − 8.1° (C = 1.1,MeOH) 3391, 3322, 3041, 1608, 1590, 1508, 1490, 1232, 1188, 1124, 1034,1011 1.88(4H, m), 2.28(3H, s), 2.83(1H, m), 3.09-3.23(4H, m),3.60-3.65(2H, m), 3.65(3H, s), 3.83-3.93(2H, m), 4.30(1H, # m), 5.86(1H,brs), 6.15(1H, dd), 6.32(1H, d), 6.67(1H, dd), 6.97-7.00(4H, m),7.09-7.15(3H, m), 7.25(2H, m), 7.39(2H, t), 7.47(2H, d)C₃₄H₄₀N₂O₇S₁.¾H₂O (p-toluenesulfonate)     C   H   N Calcd:  64.39 6.364.42 Found: 64.47 6.35 4.35 64

Colorless crystal 148-150° C. (2-propanol:water = 15:1) [α]_(D) − 8.6°(C = 1.0, MeOH) 3407, 2727, 2843, 1613, 1508, 1489, 1460, 1398, 1328,1252, 1128, 909 2.12(3H, s), 2.21(3H, s), 2.30(3H, s), 3.24(4H, m),3.57-3.80(6H, m), 3.84(2H, s), 3.92(2H, m), 4.44 # (1H, m), 5.97(1H,brs), 6.76(1H, s), 6.93(2H, d), 7.06-7.13(4H, m), 7.20-7.25(2H, m)C₂₉H₃₈N₃O₂F₁Cl₂.¾H₂O (dihydrochloride)     C   H   N Calcd:  61.75 6.797.45 Found: 61.82 6.83 7.38 Properties Com- Melting point pound(recrystalli- MS or Elementary no. Chemical structure zation solvent) IR(KBr) ¹H-NMR (DMSO-d₆) analysis 65

Colorless crystal 154-157° C. (2-propanol:water = 3:1) [α]_(D) − 10.8°(C = 1.1, H₂O) 1615, 1508, 1490, 1460, 1398, 1321, 1255, 1040,  931, 8082.01(3H, s), 2.07(3H, s), 2.08(3H, s), 3.10-3.45(10H, m), 3.79(2H, m),3.84(2H, s), 4.26(1H, brs), 5.80(1H, # brs), 6.54(1H, s), 6.92(2H, d),7.06-7.12(4H, m), 7.21-7.25(2H, m) MS (FAB/free base) m/z: 478 (M + H⁺)66

Colorless crystal 163-168° C. (2-propanol:water = 15:1) [α]_(D) − 6.2°(C = 1.2, MeOH) 1630, 1508, 1460, 1415, 1328, 1191, 1124, 1082, 1064,884,  834 2.14(3H, s), 2.21(3H, s), 2.32(3H, s), 3.02-3.42(6H, m),3.61-3.63(2H, m), 3.72-7.80(2H, m), 3.84(2H, # s), 3.95(2H, m), 4.35(1H,m), 6.80(1H, s), 6.93(2H, m), 7.07-7.13(4H, m), 7.21-7.25(2H, m) MS(FAB/free base) m/z: 478 (M + H⁺)

Inhibitory Effect of Veratrizine-induced Sodium Channel Activity

The membrane potential of the synaptozomes prepared from the brainmembrane of Wistar rats (male, 10 to 12 weeks old) was measured by themethod of Aiuchi et al. [T. Aiuchi et al: Biochimi. Biophys. Acta. 771,228 (1984)] using a membrane sensitive fluorescent dye Rhodamine 6G toevaluate the effects of suppression of the compound on theveratrizine-inducing depolarization response. The results are shown inTable II.

TABLE II Anti-veratrizine effect Compound (inhibiting rate %) no.(compound 0.1 μM) 25 21 26 42.2 27 32.1 28 27.9 30 23.5 31 20 32 14.5 3319.5 34 17.2 35 23.2 36 23.3 37 24.3 38 43.9 40 33.9 41 22.1 42 10.3 4321 44 12.2 46 29.4 47 30.5 48 17.5 49 15.1 51 39.8 53 23.8 54 24.2 5521.3 56 28.5 57 25.8 58 25.8

T-Type Calcium Channel Inhibitory Effect

The hippocampal CA1 pyramidal cells were isolated from Wistar rats(female, 1 week old) in according to the method reported by Takahashi etal. [K. Takahashi et al.; J. Pharmacol. Exp. Ther., 256, 169 (1991)] andthe T-type calcium current was measured under conditions of a fixedmembrane potential using the whole-cell configuration of the patch clamptechnique. The effects of the compounds were evaluated from the rate ofsuppression of the peak current after 1 minute of application using theconcentration clamp method. The results are shown in Table III.

TABLE III Compound T-type Ca²⁺ channel inhibitory effect no. IC₅₀ (μM)26 3.4 28 3.0 41 4.0 53 2.2

Lipid Peroxidation Suppressing Effect

The whole brains of Wistar rats (10 weeks old, male) were excised andhomogenized in the 10 times volumes of 50 mM phosphate-buffered solution(pH=7.4) (hereinafter referred to as PBS). The centrifuged supernatentwas further diluted fourfold and the result was used as the brainmembrane preparation. The membrane preparation was incubated in thepresence of vehicle (0.5% DMSO) or compound at 37° C. for 30 minutes andan automatic oxidation reaction promoted. The reaction was stopped by35% perchloric acid, then the total of the main decomposition productsof the peroxidized lipids present in the centrifuged supernatent, thatis, malonaldehyde and 4-hydroxyalkenals, was measured using aBIOXYTECH®/LPO-586™ peroxidized lipid calorimetric assay kit (OXISInternational, Inc.) and used as an indicator of the lipid peroxidation.The IC₅₀ value was found from the curve of the concentration forsuppressing production of these aldehydes in the presence of thecompound.

The results are shown in Table IV.

TABLE IV Lipid peroxidation Compound suppressing effect no. IC₅₀ (μM) 260.25 27 0.46 28 0.22 29 0.38 34 0.80 37 0.86 38 3.6 39 0.72 40 3.6 410.87 46 8.6 53 0.27 58 0.37 Flunarizine 42

Dopamine D₂ Receptor Blocking Action

57 μl of the membrane fraction prepared from the striatum of Wistar malerats (6 weeks old) was incubated together with the compound and 1.0 nM[³H] raclopride in a buffer at 25° C. for 1 hour. A GF/C glass filter(0.1% polyethylene imine treatment) was used for B/F separation. A betaplate was used for measurement of the radioactivity to evaluate theeffect of the compound.

The results are shown in Table V.

TABLE V Dopamine D₂ receptor Compound blocking action no. IC₅₀ (nM) 265600 27 6300 28 12000 40 12000 41 11000 53 11000 Flunarizine 228

Audiogenic Seizure Suppressing Effect

The audiogenic seizure suppressing effect of the compounds was evaluatedby the method of Sarro et al. [G. B. De Sarro et al., Br. J. Pharmacol.,93, 247 (1988)]. That is, the compound dissolved in 10%2-hydroxypropyl-β-cyclodextrin was administered intraperitoneally toDBA/2N type mice (male, 3 weeks old). After 20 minutes, a supersonicwasher was used to apply audio stimulus of at least 90 dB for 1 minute.The wild running (WR), clonic seizures (clonus), tonic seizures (tonus),and the respiratory arrest (RA) were observed. The seizure suppressingeffect was evaluated from the rate of suppression of the average valueof the seizure score found as 0=no response, 1=WR, 2=clonus, 3=tonus,and 4=RA. The results are shown in Table VI.

TABLE VI Antiseizure effect Compound (suppression rate %) no. (compound10 mg/kg, i.p.) 25 58 26 74 27 55 28 76 30 44 31 74 32 70 33 78 34 74 3574 36 68 37 76 38 92 40 80 41 60 42 50 43 30 44 80 45 44 46 88 47 56 4870 49 42 51 74 53 46 54 58 55 70 56 64 57 68 58 68

Acute Toxicity Test

A pharmaceutical preparation was administered intravenously to ddY mice(male, 6 weeks old). The 50% lethal dosage LD₅₀ of the acute toxicitywas calculated by an ordinary method from the death rate up to 24 hoursafter administration. The results are shown in Table VII.

TABLE VII Compound LD₅₀ no. (mg/kg, i.v.) 26 41 28 47.3 40 49.1 41 36.7

INDUSTRIAL APPLICABILITY

As explained above, the arylpiperidinopropanol andarylpiperazinopropanol derivatives represented by the formula (I)according to the present invention have effects suppressing cytotoxicCa²⁺ overload and lipid peroxidation, are high in safety, and are usefulas pharmaceuticals for the alleviation or treatment of ischemicdiseases.

What is claimed is:
 1. A process for producing a compound having theformula (XII′):

wherein Q′ represents a phenyl group or a phenyl group substituted witha substituent selected from the group consisting of a halogen atom, ahydroxy group, a C₁ to C₅ linear or branched alkoxy group, a C₁ to C₅linear or branched alkyl group, and a C₁ to C₅ linear or branched alkylgroup substituted with a halogen atom, and X represents a hydrogen atom,a halogen atom, an alkoxy group, an alkyl group, or an alkyl groupsubstituted with a halogen atom, that process comprises reacting abenzophenon derivative having the formula

wherein Q′ and X are the same as defined above, and L represents a groupwhich can be easily exchanged with an amino group, with a piperazinederivative having the formula

wherein W represents a hydrogen atom, a benzyl group, a p-methoxybenzylgroup, a benzyloxycarbonyl group, a p-methoxybenzyloxycarbonyl group, ap-nitrobenzyloxycarbonyl group, a tert-butoxycarbonyl group, anethoxycarbonyl group or an acetyl group to give a compound having theformula (XV):

wherein Q′, W and X are the same as defined above, and the subsequentreduction and deprotection of the compound having the formula (XV)provided that when W is hydrogen then deprotection is not necessary.